1 00:00:00,090 --> 00:00:02,490 The following content is provided under a Creative 2 00:00:02,490 --> 00:00:04,059 Commons license. 3 00:00:04,059 --> 00:00:06,330 Your support will help MIT OpenCourseWare 4 00:00:06,330 --> 00:00:10,720 continue to offer high quality educational resources for free. 5 00:00:10,720 --> 00:00:13,350 To make a donation or view additional materials 6 00:00:13,350 --> 00:00:17,280 from hundreds of MIT courses, visit MIT OpenCourseWare 7 00:00:17,280 --> 00:00:18,480 at ocw.mit.edu. 8 00:00:27,484 --> 00:00:28,770 ROBERT TOWNSEND: Today is-- 9 00:00:28,770 --> 00:00:30,960 it's not exactly a midpoint of the course, 10 00:00:30,960 --> 00:00:35,940 but it is a transition lecture between 11 00:00:35,940 --> 00:00:40,080 these macro financial models with micro underpinnings. 12 00:00:40,080 --> 00:00:42,990 Today we're going to go through the measurement, 13 00:00:42,990 --> 00:00:49,560 and then in subsequent lectures, focus on testing 14 00:00:49,560 --> 00:00:51,295 for the micro underpinnings. 15 00:00:51,295 --> 00:00:53,420 I mean, everything is connected to everything else. 16 00:00:56,130 --> 00:00:56,940 There's a quote-- 17 00:00:56,940 --> 00:00:59,550 I don't know, many of you may be familiar with it. 18 00:00:59,550 --> 00:01:01,410 It's really quite good. 19 00:01:01,410 --> 00:01:03,950 Lord Kelvin. 20 00:01:03,950 --> 00:01:06,540 In physical science, the first essential step 21 00:01:06,540 --> 00:01:10,500 in the direction of learning any subject 22 00:01:10,500 --> 00:01:12,840 is define the principles of numerical reckoning 23 00:01:12,840 --> 00:01:14,790 and practicable methods for measuring 24 00:01:14,790 --> 00:01:18,090 some quality connected with it. 25 00:01:18,090 --> 00:01:20,730 I often say that you can measure-- 26 00:01:20,730 --> 00:01:23,460 when you can measure what you're speaking about and express it 27 00:01:23,460 --> 00:01:27,130 in numbers, you know something about it, 28 00:01:27,130 --> 00:01:29,490 but when you cannot measure it, you cannot express it 29 00:01:29,490 --> 00:01:33,540 in numbers, your knowledge is of a meager and unsatisfactory 30 00:01:33,540 --> 00:01:35,700 kind. 31 00:01:35,700 --> 00:01:37,440 It may be the beginning of knowledge, 32 00:01:37,440 --> 00:01:40,260 but you have scarcely in your thoughts 33 00:01:40,260 --> 00:01:43,380 advanced to the stage of science, 34 00:01:43,380 --> 00:01:47,310 whatever that matter may be. 35 00:01:47,310 --> 00:01:50,340 So of course, today we're going to talk about measurement, 36 00:01:50,340 --> 00:01:52,660 and this is not an economics quote. 37 00:01:52,660 --> 00:02:00,510 This is a little more related to both economics and impact 38 00:02:00,510 --> 00:02:01,440 evaluation. 39 00:02:01,440 --> 00:02:03,390 It's Bill Gates. 40 00:02:03,390 --> 00:02:05,205 He's talking about the steam engine. 41 00:02:05,205 --> 00:02:10,229 In his book I think he must have read on the most powerful idea 42 00:02:10,229 --> 00:02:14,790 in the world, which is about measuring the energy 43 00:02:14,790 --> 00:02:19,130 output of engines with this my micrometer. 44 00:02:22,290 --> 00:02:26,690 The point-- he's quoting Mr. Rosen-- 45 00:02:26,690 --> 00:02:28,920 is to see incremental design changes 46 00:02:28,920 --> 00:02:30,480 that led to improvement-- 47 00:02:30,480 --> 00:02:33,690 mainly what you want, higher power and less consumption 48 00:02:33,690 --> 00:02:35,510 of the coal. 49 00:02:35,510 --> 00:02:39,710 And it was this interaction between experimenting, trying 50 00:02:39,710 --> 00:02:43,400 things, measuring precisely given the goal 51 00:02:43,400 --> 00:02:46,040 and then innovating some more that 52 00:02:46,040 --> 00:02:52,250 led to this high-powered steam engine which revolutionized 53 00:02:52,250 --> 00:02:55,370 the world, essentially. 54 00:02:55,370 --> 00:02:57,230 So he's saying he's struck how important it 55 00:02:57,230 --> 00:03:01,370 is to measure-- to improve the human condition 56 00:03:01,370 --> 00:03:05,060 and how incredible the progress could be if you set a goal 57 00:03:05,060 --> 00:03:08,090 and measure it. 58 00:03:08,090 --> 00:03:11,990 But then he goes on to say that he is also 59 00:03:11,990 --> 00:03:14,030 amazed how little this is actually done 60 00:03:14,030 --> 00:03:17,020 and how hard it is to do it to get it right. 61 00:03:17,020 --> 00:03:19,460 He gives an example of foreign aid, 62 00:03:19,460 --> 00:03:23,510 just measuring the dollars, say, that flow rather than 63 00:03:23,510 --> 00:03:26,270 the underlying impact that it may or may not 64 00:03:26,270 --> 00:03:31,375 have on household business or country welfare. 65 00:03:34,270 --> 00:03:36,870 So the type of measurements that are needed or those that 66 00:03:36,870 --> 00:03:40,275 allow us to assess performance and gauge impact. 67 00:03:45,150 --> 00:03:49,640 So this is the end of what Bill Gates was saying 68 00:03:49,640 --> 00:03:51,590 and the rest is something I want to say. 69 00:03:54,600 --> 00:03:56,520 Measurement is tricky in the sense 70 00:03:56,520 --> 00:03:59,730 that he's really not saying just go out and measure 71 00:03:59,730 --> 00:04:04,650 anything you want to consistent with the goal. 72 00:04:04,650 --> 00:04:09,570 For a while the Gates Foundation was promoting savings accounts, 73 00:04:09,570 --> 00:04:12,690 having poor people have access to savings account 74 00:04:12,690 --> 00:04:17,610 as a kind of panacea, and indeed, wanted 75 00:04:17,610 --> 00:04:19,800 to measure the number of households 76 00:04:19,800 --> 00:04:24,150 out there now who have them and track improvement. 77 00:04:24,150 --> 00:04:31,320 And there's a new world survey done by the Gallup Foundation-- 78 00:04:31,320 --> 00:04:33,390 Gallup people who do the polls, actually, 79 00:04:33,390 --> 00:04:36,360 have survey techniques worldwide. 80 00:04:39,440 --> 00:04:41,840 But of course, from our perspective, 81 00:04:41,840 --> 00:04:44,690 just having a savings account may not accomplish much. 82 00:04:44,690 --> 00:04:46,700 It's not a kind of measurement that's really 83 00:04:46,700 --> 00:04:49,070 assessing the impact on people. 84 00:04:49,070 --> 00:04:52,940 You'd like to know what impact it's having on welfare-- 85 00:04:52,940 --> 00:04:54,920 that is to say on actually using it 86 00:04:54,920 --> 00:04:58,520 or better ability to smooth consumption or finance 87 00:04:58,520 --> 00:05:00,980 investments and so on. 88 00:05:03,850 --> 00:05:05,250 Well fortunately in economics, we 89 00:05:05,250 --> 00:05:10,440 have one set of measurement tools that are common, 90 00:05:10,440 --> 00:05:14,070 and they're also consistent with the theme of the lectures-- 91 00:05:14,070 --> 00:05:17,160 namely there is measurement at the individual household 92 00:05:17,160 --> 00:05:21,300 level that's also consistent with measurement 93 00:05:21,300 --> 00:05:24,780 of the flow of funds across countries and everything 94 00:05:24,780 --> 00:05:26,290 in between. 95 00:05:26,290 --> 00:05:31,560 And what I'm going to try to go through today 96 00:05:31,560 --> 00:05:37,380 but here's a quick summary of it is what these tools are. 97 00:05:37,380 --> 00:05:43,070 Basically you start with the financial accounts 98 00:05:43,070 --> 00:05:45,440 for a household or a firm. 99 00:05:45,440 --> 00:05:48,030 So that would be the balance sheet, the income statement, 100 00:05:48,030 --> 00:05:51,290 and the statement of cash flow. 101 00:05:51,290 --> 00:05:55,430 You may associate that language with corporate financial 102 00:05:55,430 --> 00:06:00,530 accounting and wonder perhaps about its relevance, 103 00:06:00,530 --> 00:06:03,650 but they are the benchmark standards 104 00:06:03,650 --> 00:06:07,160 and they can be applied to households and especially 105 00:06:07,160 --> 00:06:09,050 to households running businesses, which 106 00:06:09,050 --> 00:06:11,880 is the typical enterprise in developing countries. 107 00:06:11,880 --> 00:06:20,130 So I'll show you in a moment exactly how this can be done. 108 00:06:20,130 --> 00:06:23,550 What use can you make of these things? 109 00:06:23,550 --> 00:06:26,670 Again, I'm going to try to buttress my case that it's not 110 00:06:26,670 --> 00:06:28,560 just measurement for the sake of measurement, 111 00:06:28,560 --> 00:06:33,130 but actually that you can use these measurements. 112 00:06:33,130 --> 00:06:37,380 So in this case, we'll draw a distinction between 113 00:06:37,380 --> 00:06:42,670 productivity and the return on assets versus liquidity, 114 00:06:42,670 --> 00:06:45,870 some distinction you could not make if you were not 115 00:06:45,870 --> 00:06:50,610 clear-headed as in applying these financial accounts-- 116 00:06:50,610 --> 00:06:53,790 or at least it would be quite easy to make mistakes. 117 00:06:59,600 --> 00:07:05,410 And show how-- where wealth is coming from 118 00:07:05,410 --> 00:07:08,020 and how wealth changes over time. 119 00:07:08,020 --> 00:07:11,620 At the household level that gets you into poverty dynamics, 120 00:07:11,620 --> 00:07:15,940 you can start thinking about the mechanics that underlie changes 121 00:07:15,940 --> 00:07:16,960 in inequality. 122 00:07:22,010 --> 00:07:25,520 And again, in an application, take a look 123 00:07:25,520 --> 00:07:31,840 at how households are making a distinction, apparently, 124 00:07:31,840 --> 00:07:35,200 between savings rates and productivity 125 00:07:35,200 --> 00:07:38,420 in terms of what they do in their own investment. 126 00:07:38,420 --> 00:07:42,130 I think you've seen in the recitation section 127 00:07:42,130 --> 00:07:44,590 sort of a precursor of this in terms of the Thai 128 00:07:44,590 --> 00:07:47,660 data and some case studies. 129 00:07:47,660 --> 00:07:50,230 So in some sense, we're going to go back to the basics 130 00:07:50,230 --> 00:07:53,360 and talk about the financial accounts, 131 00:07:53,360 --> 00:07:59,830 but at least you have a motivation already 132 00:07:59,830 --> 00:08:04,050 for what households are doing. 133 00:08:04,050 --> 00:08:07,560 Then we can aggregate up from households-- 134 00:08:07,560 --> 00:08:13,010 say all households in a village and create something 135 00:08:13,010 --> 00:08:14,510 like the national income accounts, 136 00:08:14,510 --> 00:08:17,090 except they're not at the national level, 137 00:08:17,090 --> 00:08:19,580 they're village income accounts. 138 00:08:19,580 --> 00:08:26,450 But we have the standard savings and investment, GDP numbers, 139 00:08:26,450 --> 00:08:31,850 and indeed, we get balance of payments at the village 140 00:08:31,850 --> 00:08:35,929 level or regional level just so you 141 00:08:35,929 --> 00:08:39,500 can see what's going on within the country, not just of 142 00:08:39,500 --> 00:08:41,280 the country relative to other-- 143 00:08:41,280 --> 00:08:44,330 and again, you've seen this come up in the lectures-- 144 00:08:44,330 --> 00:08:47,840 China, provincial-level China, at the national level 145 00:08:47,840 --> 00:08:51,920 relative to the rest of the world, 146 00:08:51,920 --> 00:08:55,340 flows across sectors that differ in obstacles to trade. 147 00:08:59,980 --> 00:09:05,350 And finally, we'll get to the flow of funds accounting, which 148 00:09:05,350 --> 00:09:07,690 I like to think of as the nuts and bolts 149 00:09:07,690 --> 00:09:10,550 of the financial system actually measured. 150 00:09:10,550 --> 00:09:13,330 So you don't just have to imagine 151 00:09:13,330 --> 00:09:16,390 what's going on in the country over time 152 00:09:16,390 --> 00:09:19,030 in response to shocks, you can actually 153 00:09:19,030 --> 00:09:21,152 see it in the measurement. 154 00:09:26,820 --> 00:09:31,820 So first paper up. 155 00:09:31,820 --> 00:09:32,720 Not going to work? 156 00:09:36,560 --> 00:09:39,910 Let's not cut off too much, maybe it's all right. 157 00:09:39,910 --> 00:09:50,000 Is to create-- well, I'm just not fast enough. 158 00:09:55,260 --> 00:09:57,160 Create the balance sheet, income statement, 159 00:09:57,160 --> 00:10:00,300 and statement of cash flow for these households 160 00:10:00,300 --> 00:10:03,720 in order to make the distinction between productivity 161 00:10:03,720 --> 00:10:05,530 and liquidity. 162 00:10:05,530 --> 00:10:12,330 So this is a quote from Deaton that I ask often show. 163 00:10:12,330 --> 00:10:14,580 The only way to obtain these measures 164 00:10:14,580 --> 00:10:16,680 is by imposing an accounting framework 165 00:10:16,680 --> 00:10:19,950 on the data, painstakingly construct estimates 166 00:10:19,950 --> 00:10:21,870 from myriad responses to questions 167 00:10:21,870 --> 00:10:25,470 about the specific components that contribute to the total. 168 00:10:25,470 --> 00:10:29,370 So actually, there's a computer code 169 00:10:29,370 --> 00:10:34,410 that's you know 18 to 20 pages single-line code, 170 00:10:34,410 --> 00:10:36,880 and it operates on the Thai data. 171 00:10:36,880 --> 00:10:40,830 It, of course, searches over all the questions 172 00:10:40,830 --> 00:10:42,300 in the questionnaire in order to be 173 00:10:42,300 --> 00:10:44,940 able to extract the key variables that 174 00:10:44,940 --> 00:10:47,910 are needed line by line to create 175 00:10:47,910 --> 00:10:49,500 these financial accounts. 176 00:10:49,500 --> 00:10:51,990 We didn't begin with the financial accounts. 177 00:10:51,990 --> 00:10:55,530 I wish we had, because then certain instances, 178 00:10:55,530 --> 00:10:58,290 it would have helped us measure better. 179 00:10:58,290 --> 00:11:02,460 This was something we came to afterwards 180 00:11:02,460 --> 00:11:04,470 when we were just struggling with a simple idea 181 00:11:04,470 --> 00:11:07,920 of what do we really mean by income? 182 00:11:07,920 --> 00:11:09,300 Something very basic. 183 00:11:09,300 --> 00:11:12,490 AUDIENCE: [INAUDIBLE] more like 100 page, you think. 184 00:11:12,490 --> 00:11:13,740 ROBERT TOWNSEND: That's a lot. 185 00:11:13,740 --> 00:11:15,750 AUDIENCE: And the way that you look at it is initial. 186 00:11:15,750 --> 00:11:16,667 ROBERT TOWNSEND: Yeah. 187 00:11:16,667 --> 00:11:19,470 Version 1, version 2. 188 00:11:19,470 --> 00:11:21,600 OK. 189 00:11:21,600 --> 00:11:22,980 So what are the problems when you 190 00:11:22,980 --> 00:11:25,740 have these high frequency monthly data or to some degree 191 00:11:25,740 --> 00:11:27,540 even annual data? 192 00:11:27,540 --> 00:11:29,760 There is a difference in timing between, say, 193 00:11:29,760 --> 00:11:33,540 when inputs are purchased and when their outputs are sold. 194 00:11:33,540 --> 00:11:37,380 If you think about farmers, they only sell at harvest time 195 00:11:37,380 --> 00:11:39,930 and they're using inputs along the way. 196 00:11:42,810 --> 00:11:47,790 It's true for businesses, too, who don't sell instantaneously. 197 00:11:47,790 --> 00:11:51,150 They have to acquire inputs to produce something or buy 198 00:11:51,150 --> 00:11:55,455 goods for inventory to stock, and then subsequently sell. 199 00:11:59,930 --> 00:12:02,850 We are worried about liquidity, on the other hand. 200 00:12:02,850 --> 00:12:05,090 So since smoothing of consumption, 201 00:12:05,090 --> 00:12:07,010 protection of investment from cash 202 00:12:07,010 --> 00:12:10,440 flow, financing a budget deficits. 203 00:12:10,440 --> 00:12:14,600 So we want to make distinction between cash flow 204 00:12:14,600 --> 00:12:20,090 in terms of liquidity and kind of the overall performance. 205 00:12:20,090 --> 00:12:24,710 The key idea with performance is an accrual notion 206 00:12:24,710 --> 00:12:28,250 of accounting, which is simple to say-- 207 00:12:28,250 --> 00:12:31,220 mainly do not book or subtract expenses 208 00:12:31,220 --> 00:12:33,080 until the output is sold. 209 00:12:33,080 --> 00:12:35,300 It's the idea of corporate finance-- 210 00:12:35,300 --> 00:12:38,330 you have projects, not occupations. 211 00:12:38,330 --> 00:12:39,680 You buy assets. 212 00:12:39,680 --> 00:12:44,420 You have an idea, you need to fund it, you buy equipment, 213 00:12:44,420 --> 00:12:48,830 and you don't expect a return right away. 214 00:12:48,830 --> 00:12:53,780 So for the short-run, you have lots of negative profits, 215 00:12:53,780 --> 00:12:56,600 but it's just a cash outflow, so you 216 00:12:56,600 --> 00:12:59,360 wait till you can get the big picture, which 217 00:12:59,360 --> 00:13:04,260 is when you get the revenue then you subtract off the inputs. 218 00:13:04,260 --> 00:13:06,270 But financing the inputs along the way, 219 00:13:06,270 --> 00:13:08,700 that's a liquidity issue. 220 00:13:08,700 --> 00:13:10,890 And indeed, if you're running out, 221 00:13:10,890 --> 00:13:15,840 you may as not invest even though your underlying project 222 00:13:15,840 --> 00:13:17,970 or idea is quite successful. 223 00:13:22,820 --> 00:13:25,730 So we go to the financial accounts. 224 00:13:25,730 --> 00:13:33,090 Now viewing households as firms, we have to draw some parallels. 225 00:13:33,090 --> 00:13:36,660 Assets are kind of easy to think about both on the household 226 00:13:36,660 --> 00:13:42,930 side and on the firm side. 227 00:13:42,930 --> 00:13:47,740 Households have debt just like firms have liabilities, 228 00:13:47,740 --> 00:13:54,120 so those are straightforward parallel concepts. 229 00:13:54,120 --> 00:13:56,950 When you think about wealth, wealth 230 00:13:56,950 --> 00:14:00,415 is really net worth on the household side. 231 00:14:03,010 --> 00:14:06,750 The language for firms is something like equity. 232 00:14:06,750 --> 00:14:13,220 It's the amount of the owners' investment in the enterprise 233 00:14:13,220 --> 00:14:18,600 that's built up over time that is not 234 00:14:18,600 --> 00:14:21,980 as different from the fact that some of the equipment 235 00:14:21,980 --> 00:14:24,210 gets owned by outsiders who financed 236 00:14:24,210 --> 00:14:25,940 the project by lending. 237 00:14:29,670 --> 00:14:31,860 What is the sources of this wealth? 238 00:14:31,860 --> 00:14:36,180 Well basically savings, like retained earnings. 239 00:14:36,180 --> 00:14:40,050 Savings for households, retained earnings for businesses. 240 00:14:40,050 --> 00:14:44,280 That part of the profits that you put back into the business. 241 00:14:44,280 --> 00:14:48,210 But also potentially contributed capital 242 00:14:48,210 --> 00:14:50,160 which I'll come to in a minute. 243 00:14:50,160 --> 00:14:54,840 This is this may strike you as odd at first, I'm not sure. 244 00:14:54,840 --> 00:14:56,640 Consumption on the household side 245 00:14:56,640 --> 00:15:00,200 is the same as dividends on the firm side. 246 00:15:00,200 --> 00:15:03,620 So the consumption we think we know, 247 00:15:03,620 --> 00:15:09,800 but dividends is like a firm paying 248 00:15:09,800 --> 00:15:13,460 either the inside owners or outside investors part 249 00:15:13,460 --> 00:15:14,420 of the return stream. 250 00:15:14,420 --> 00:15:17,870 So that stuff isn't going into the firm anymore, 251 00:15:17,870 --> 00:15:20,060 it's not retained earnings. 252 00:15:20,060 --> 00:15:26,220 It's kind of the fruit that you get to enjoy. 253 00:15:26,220 --> 00:15:31,350 This is also a bit of a stretch and can be problematic. 254 00:15:31,350 --> 00:15:34,800 Incoming gifts on the household side, 255 00:15:34,800 --> 00:15:38,550 what do we do with them in the financial accounts? 256 00:15:38,550 --> 00:15:43,350 Gifts aren't really income in some sense-- 257 00:15:43,350 --> 00:15:45,120 in the corporate financial sense. 258 00:15:45,120 --> 00:15:48,990 Because income is a return stream of projects, 259 00:15:48,990 --> 00:15:54,570 but gifts, that's just something somebody gave you. 260 00:15:54,570 --> 00:15:57,870 Well, so we ended up thinking about gifts as financing. 261 00:15:57,870 --> 00:16:00,830 So the idea is, someone gives you a gift, 262 00:16:00,830 --> 00:16:05,160 you have some implicit idea of reciprocity. 263 00:16:05,160 --> 00:16:08,640 So they're in effect helping your enterprise, 264 00:16:08,640 --> 00:16:12,950 they're investing in your enterprise 265 00:16:12,950 --> 00:16:15,800 even though the contract may not be nearly as formal 266 00:16:15,800 --> 00:16:18,765 as, say, an equity arrangement. 267 00:16:21,440 --> 00:16:23,720 And finally, the household budget constraint 268 00:16:23,720 --> 00:16:28,680 is like the firm cash flow constraint. 269 00:16:28,680 --> 00:16:31,740 So again, we can therefore distinguish 270 00:16:31,740 --> 00:16:34,200 assets versus wealth. 271 00:16:34,200 --> 00:16:36,750 Note how easy it would be to make a mistake there. 272 00:16:36,750 --> 00:16:37,860 Isn't that the same thing? 273 00:16:37,860 --> 00:16:38,400 No. 274 00:16:38,400 --> 00:16:44,270 Remember, the liabilities get subtracted from assets 275 00:16:44,270 --> 00:16:46,460 to create, quote, wealth or net worth. 276 00:16:46,460 --> 00:16:49,670 Accrual versus cash flow I've said often enough. 277 00:16:49,670 --> 00:16:52,760 Savings as a budget surplus as in cash flow-- 278 00:16:52,760 --> 00:16:57,050 so you had more coming in in revenue than you had outflows 279 00:16:57,050 --> 00:17:02,780 in terms of expenses versus a different notion of savings, 280 00:17:02,780 --> 00:17:05,839 and that's savings as in wealth accumulation, that's 281 00:17:05,839 --> 00:17:13,670 where do you put the increasing wealth that you're acquiring? 282 00:17:13,670 --> 00:17:15,619 That's more like a portfolio problem. 283 00:17:17,958 --> 00:17:19,500 And therefore, we need to distinguish 284 00:17:19,500 --> 00:17:22,401 liquidity management from asset management. 285 00:17:25,290 --> 00:17:27,900 So quick review. 286 00:17:27,900 --> 00:17:30,900 By the way, I'm really going to struggle today 287 00:17:30,900 --> 00:17:35,460 to make sure you don't just sort of pass out on me. 288 00:17:35,460 --> 00:17:37,650 Because accounting has a reputation 289 00:17:37,650 --> 00:17:40,530 as being really boring, and it is true 290 00:17:40,530 --> 00:17:43,710 that it gets more and more tedious. 291 00:17:43,710 --> 00:17:45,690 And so you kind of like tune out, 292 00:17:45,690 --> 00:17:51,270 like OK, I'll tolerate today. 293 00:17:51,270 --> 00:17:54,100 But no, you'll discover that when 294 00:17:54,100 --> 00:17:57,310 you start doing your research, whether it's looking at data 295 00:17:57,310 --> 00:18:01,780 from surveys or gathering data or trying to do-- 296 00:18:01,780 --> 00:18:05,313 and then you'll come back and you'll be much more interested 297 00:18:05,313 --> 00:18:05,980 in these things. 298 00:18:05,980 --> 00:18:10,120 So the spirit with which I give the lecture today is not the 299 00:18:10,120 --> 00:18:13,660 bore you with the details, even though at times it 300 00:18:13,660 --> 00:18:17,560 will be tempting, because once you've invested in this stuff, 301 00:18:17,560 --> 00:18:19,880 you want to share that knowledge. 302 00:18:19,880 --> 00:18:24,160 But rather, to give you a reader's guide or viewer's 303 00:18:24,160 --> 00:18:26,170 guide of what the key concepts are 304 00:18:26,170 --> 00:18:27,980 and how things fit together. 305 00:18:27,980 --> 00:18:31,910 So that latter thing is what I want you to take away. 306 00:18:31,910 --> 00:18:36,100 So here is a typical balance sheet. 307 00:18:36,100 --> 00:18:40,120 You've got assets and you've got liabilities. 308 00:18:40,120 --> 00:18:43,670 The bottom line has to be the same. 309 00:18:43,670 --> 00:18:45,920 Now how does that happen? 310 00:18:45,920 --> 00:18:47,980 Well, you really subtract liabilities 311 00:18:47,980 --> 00:18:52,820 off from the assets, and hopefully assets are larger, 312 00:18:52,820 --> 00:18:57,390 so the residual is basically equity or net worth, OK? 313 00:18:57,390 --> 00:18:59,100 And then this is just an enumeration 314 00:18:59,100 --> 00:19:01,530 of different kinds of assets, which 315 00:19:01,530 --> 00:19:05,700 include financial and trade credit and so on as 316 00:19:05,700 --> 00:19:10,530 well as if-- lending as well as your real physical fixed 317 00:19:10,530 --> 00:19:17,950 assets, and liabilities are kind of obvious, and so on. 318 00:19:17,950 --> 00:19:25,710 So now let's get into some cases here. 319 00:19:25,710 --> 00:19:28,320 The Living Standards Measurement Survey 320 00:19:28,320 --> 00:19:34,810 makes a mistake if you want to think of it that way. 321 00:19:34,810 --> 00:19:38,200 They ask about inputs used over a specified cropping season 322 00:19:38,200 --> 00:19:39,115 and the amount spent. 323 00:19:42,470 --> 00:19:45,150 And implicitly they're equating them, 324 00:19:45,150 --> 00:19:48,170 but they don't have to be equal to each other. 325 00:19:48,170 --> 00:19:52,070 For one thing, you could be using inputs in your farm 326 00:19:52,070 --> 00:19:55,280 that you acquired previously-- especially with monthly data, 327 00:19:55,280 --> 00:20:00,800 it's likely you have some kind of input inventory. 328 00:20:00,800 --> 00:20:04,430 And for that matter, you could spend money 329 00:20:04,430 --> 00:20:06,890 and buy inputs but not actually put them on the field. 330 00:20:12,140 --> 00:20:19,370 And the same thing happens on the output side, essentially. 331 00:20:19,370 --> 00:20:20,090 What do we do? 332 00:20:20,090 --> 00:20:23,660 Fortunately in the Thai survey, we actually 333 00:20:23,660 --> 00:20:26,480 keep track of both inputs required 334 00:20:26,480 --> 00:20:28,550 since the previous interview as well as 335 00:20:28,550 --> 00:20:32,080 the actual use, both value and quantity of inputs. 336 00:20:32,080 --> 00:20:35,555 So we have this input inventory account. 337 00:20:39,260 --> 00:20:43,928 And revenues I say here, but don't dwell on it. 338 00:20:43,928 --> 00:20:45,720 So what do you do when you have the output? 339 00:20:45,720 --> 00:20:48,320 Well, you could store it or you could sell it 340 00:20:48,320 --> 00:20:49,820 or you could eat it. 341 00:20:49,820 --> 00:20:52,460 So you kind of have to create an output account. 342 00:20:52,460 --> 00:20:57,710 We act as if output is sold at the time of harvest just 343 00:20:57,710 --> 00:21:01,190 to put an accurate value on it, but when, in fact, they 344 00:21:01,190 --> 00:21:05,960 don't sell all of it or they eat some and store some, 345 00:21:05,960 --> 00:21:10,290 then we create another sort of output inventory account. 346 00:21:10,290 --> 00:21:14,240 So in high frequency data, this sort of inventory 347 00:21:14,240 --> 00:21:16,753 that your mind might glaze over when 348 00:21:16,753 --> 00:21:18,170 you look at a financial statement, 349 00:21:18,170 --> 00:21:24,250 inventory may be a really key smoothing device. 350 00:21:24,250 --> 00:21:27,730 And at the risk of getting carried away, 351 00:21:27,730 --> 00:21:31,270 there's something called work-in-progress inventory, 352 00:21:31,270 --> 00:21:34,060 and that happens when you're using this accrual 353 00:21:34,060 --> 00:21:35,950 notion of accounting where you don't 354 00:21:35,950 --> 00:21:39,010 want to subtract something off as an expense yet. 355 00:21:39,010 --> 00:21:41,080 If you don't subtract it off as an expense, 356 00:21:41,080 --> 00:21:44,120 then it's not on the income statement. 357 00:21:44,120 --> 00:21:46,240 Well where the heck is it? 358 00:21:46,240 --> 00:21:49,120 Well basically, you act like you've 359 00:21:49,120 --> 00:21:52,750 created an inventory of something, 360 00:21:52,750 --> 00:21:54,880 like buying an asset. 361 00:21:54,880 --> 00:21:57,400 So all the fertilizer that you've put on the land 362 00:21:57,400 --> 00:21:59,500 and all of that stuff in the accrual notion 363 00:21:59,500 --> 00:22:03,010 is work-in-progress inventory, it's producing the crop. 364 00:22:06,970 --> 00:22:07,770 Yep? 365 00:22:07,770 --> 00:22:10,200 AUDIENCE: So how do you-- 366 00:22:10,200 --> 00:22:13,150 literally-- so how do you kind of-- 367 00:22:13,150 --> 00:22:16,380 so I'm assuming that in your survey 368 00:22:16,380 --> 00:22:18,460 you ask kind of a simpler question, 369 00:22:18,460 --> 00:22:20,593 like just count assets and name-- 370 00:22:20,593 --> 00:22:21,510 ROBERT TOWNSEND: Yeah. 371 00:22:21,510 --> 00:22:22,908 AUDIENCE: --expenses and what-- 372 00:22:22,908 --> 00:22:23,950 ROBERT TOWNSEND: Exactly. 373 00:22:23,950 --> 00:22:26,340 AUDIENCE: --like that. 374 00:22:26,340 --> 00:22:30,900 How can you be sure that your classification kind of 375 00:22:30,900 --> 00:22:34,560 is what it is and it's in the mind of the households? 376 00:22:34,560 --> 00:22:40,410 So like I understand sort of the asset versus wealth thing 377 00:22:40,410 --> 00:22:44,070 and so on, but when you go into this like inventories and stuff 378 00:22:44,070 --> 00:22:44,867 like that, how-- 379 00:22:44,867 --> 00:22:46,200 ROBERT TOWNSEND: We create that. 380 00:22:46,200 --> 00:22:47,930 We don't ask the household what they're 381 00:22:47,930 --> 00:22:50,430 a work-in-progress inventory is. 382 00:22:50,430 --> 00:22:52,710 We have that as a conceptual category 383 00:22:52,710 --> 00:22:54,990 as measured from other variables, 384 00:22:54,990 --> 00:22:58,242 like what did they buy, not yet put on the land. 385 00:22:58,242 --> 00:23:00,810 AUDIENCE: Would you think it's interesting to go 386 00:23:00,810 --> 00:23:04,393 see whether that maps in into some sort of-- 387 00:23:04,393 --> 00:23:05,310 ROBERT TOWNSEND: Yeah. 388 00:23:05,310 --> 00:23:05,880 AUDIENCE: --way-- 389 00:23:05,880 --> 00:23:07,755 ROBERT TOWNSEND: So Chris Woodruff had done-- 390 00:23:07,755 --> 00:23:10,710 the inventory thing is the hardest thing to get right. 391 00:23:13,240 --> 00:23:15,130 And in fact, when you think about it, 392 00:23:15,130 --> 00:23:18,250 you buy maybe inputs at one price 393 00:23:18,250 --> 00:23:19,580 and you sell them in another. 394 00:23:19,580 --> 00:23:21,100 So you can have-- 395 00:23:21,100 --> 00:23:24,580 or-- so you can have capital gains and losses 396 00:23:24,580 --> 00:23:27,370 on the inventory account. 397 00:23:27,370 --> 00:23:28,180 AUDIENCE: Yeah-- 398 00:23:28,180 --> 00:23:30,570 ROBERT TOWNSEND: And-- and so yeah. 399 00:23:30,570 --> 00:23:33,210 So what Chris has done is actually-- 400 00:23:33,210 --> 00:23:36,040 he wrote a paper called-- 401 00:23:36,040 --> 00:23:38,320 and we take the opposite point of view, 402 00:23:38,320 --> 00:23:42,140 but his is, how is the sausage made? 403 00:23:42,140 --> 00:23:44,090 Or don't ask what's in the sausage. 404 00:23:44,090 --> 00:23:48,540 So he just asks households basically what their income is, 405 00:23:48,540 --> 00:23:52,690 and the view there is that somehow they're 406 00:23:52,690 --> 00:23:57,070 going to do better than asking all these detailed questions. 407 00:23:57,070 --> 00:24:00,010 We think it's better to ask the detailed questions 408 00:24:00,010 --> 00:24:03,700 and then construct the income, but you can certainly-- 409 00:24:03,700 --> 00:24:05,800 and we didn't do enough of this. 410 00:24:05,800 --> 00:24:06,940 So yes. 411 00:24:06,940 --> 00:24:12,050 You should compare the answers of the households to so-- 412 00:24:12,050 --> 00:24:15,130 and do the households have in mind some liquidity notion 413 00:24:15,130 --> 00:24:18,010 of income or do they have in mind some sort of rate 414 00:24:18,010 --> 00:24:21,010 of return calculation when you ask them what their income is 415 00:24:21,010 --> 00:24:23,480 in a given year? 416 00:24:23,480 --> 00:24:25,460 AUDIENCE: Maybe even like at an earlier stage. 417 00:24:25,460 --> 00:24:28,280 So I think that in the whole boredom of accounting, 418 00:24:28,280 --> 00:24:29,600 there is some-- 419 00:24:29,600 --> 00:24:31,960 what I remember as more interesting stuff. 420 00:24:31,960 --> 00:24:35,840 It's like, everything that goes on those statements you can-- 421 00:24:35,840 --> 00:24:38,650 it's either market value, cost value. 422 00:24:38,650 --> 00:24:41,440 So there's all sorts of-- 423 00:24:41,440 --> 00:24:43,520 and you can get all sorts of numbers 424 00:24:43,520 --> 00:24:47,190 depending on how you value things. 425 00:24:47,190 --> 00:24:50,810 So my question would be in those in these settings 426 00:24:50,810 --> 00:24:53,150 where I would assume there's even 427 00:24:53,150 --> 00:24:56,720 measurement error in prices and everything else, 428 00:24:56,720 --> 00:24:58,370 like how does that all come together? 429 00:24:58,370 --> 00:25:00,578 And how do you think noise-- 430 00:25:00,578 --> 00:25:02,370 ROBERT TOWNSEND: So I'm going to take you-- 431 00:25:02,370 --> 00:25:03,110 yeah. 432 00:25:03,110 --> 00:25:05,360 So I'll take you through a paper we wrote. 433 00:25:05,360 --> 00:25:08,780 I'm going to formalize the notion of rate of return 434 00:25:08,780 --> 00:25:10,880 on assets, and then I'll show you 435 00:25:10,880 --> 00:25:14,720 one slide where we did a lot of what-- 436 00:25:14,720 --> 00:25:17,550 the great virtue of having all the data 437 00:25:17,550 --> 00:25:19,370 is we could do these experiments, say, what 438 00:25:19,370 --> 00:25:22,460 if we didn't count something we actually measured, 439 00:25:22,460 --> 00:25:24,497 or what if we know change categories 440 00:25:24,497 --> 00:25:26,080 and put it in one place and the other? 441 00:25:26,080 --> 00:25:29,270 So actually rank-ordered the three things 442 00:25:29,270 --> 00:25:32,490 that matter most to measuring productivity 443 00:25:32,490 --> 00:25:36,170 so that we and especially other researchers 444 00:25:36,170 --> 00:25:38,420 might be able to do better. 445 00:25:38,420 --> 00:25:40,840 Or not have to worry about all the details on everything, 446 00:25:40,840 --> 00:25:41,990 that's more to the point. 447 00:25:41,990 --> 00:25:42,490 Yes? 448 00:25:42,490 --> 00:25:44,490 AUDIENCE: So what do you do with households that 449 00:25:44,490 --> 00:25:45,750 also are running a business? 450 00:25:45,750 --> 00:25:48,866 Do you ask them only about household inventories 451 00:25:48,866 --> 00:25:49,698 or the equivalent? 452 00:25:49,698 --> 00:25:51,740 ROBERT TOWNSEND: No, we don't separate it at all. 453 00:25:51,740 --> 00:25:52,820 AUDIENCE: OK. 454 00:25:52,820 --> 00:25:56,210 ROBERT TOWNSEND: So we treat it as an integrated unit. 455 00:25:56,210 --> 00:26:01,520 And again, my view of it is, households don't necessarily 456 00:26:01,520 --> 00:26:02,860 make that separation. 457 00:26:02,860 --> 00:26:05,750 So we asked them what is the profit 458 00:26:05,750 --> 00:26:07,250 from running the business? 459 00:26:07,250 --> 00:26:11,510 You're asking them mentally to to separate out 460 00:26:11,510 --> 00:26:14,480 all these things, to have some money from wage earning 461 00:26:14,480 --> 00:26:15,720 and so on. 462 00:26:15,720 --> 00:26:20,150 So we prefer to measure everything-- 463 00:26:20,150 --> 00:26:21,020 AUDIENCE: Sorry. 464 00:26:21,020 --> 00:26:21,895 ROBERT TOWNSEND: Yes? 465 00:26:21,895 --> 00:26:26,030 AUDIENCE: --quick follow-up on [INAUDIBLE] question. 466 00:26:26,030 --> 00:26:29,060 In this sense in which households 467 00:26:29,060 --> 00:26:32,960 that are also a business or just treated 468 00:26:32,960 --> 00:26:35,720 as a business and consumption decisions 469 00:26:35,720 --> 00:26:37,850 are treated as a unitary things-- 470 00:26:37,850 --> 00:26:42,290 really this notion of some sort of corporate thing going on, 471 00:26:42,290 --> 00:26:45,800 how do you then go into-- 472 00:26:45,800 --> 00:26:47,010 have you thought of-- 473 00:26:47,010 --> 00:26:49,670 do you think it would be interesting to like integrate 474 00:26:49,670 --> 00:26:54,710 that with household decision-making modeling that 475 00:26:54,710 --> 00:26:57,570 also treats the household as a corporate firm? 476 00:26:57,570 --> 00:27:01,670 So the idea of transaction costs within the households, 477 00:27:01,670 --> 00:27:05,390 how like-- or the household then is still a unitary thing which 478 00:27:05,390 --> 00:27:07,790 maybe doesn't make much sense because there should be-- 479 00:27:07,790 --> 00:27:10,953 there could be like the woman is a manager of the-- 480 00:27:10,953 --> 00:27:11,870 ROBERT TOWNSEND: Yeah. 481 00:27:11,870 --> 00:27:16,200 So there are two things going on here. 482 00:27:16,200 --> 00:27:19,880 One is household non-business activities and the other 483 00:27:19,880 --> 00:27:23,180 is business activities, and we prefer 484 00:27:23,180 --> 00:27:26,150 to try to measure all of that and have an integrated account. 485 00:27:26,150 --> 00:27:28,600 Now in terms of-- 486 00:27:28,600 --> 00:27:31,760 a household is collection of individuals, 487 00:27:31,760 --> 00:27:34,925 could we do the accounting at the individual level? 488 00:27:37,460 --> 00:27:40,040 In some instances, we're painfully aware 489 00:27:40,040 --> 00:27:44,150 that this notion we have that this group of people 490 00:27:44,150 --> 00:27:47,960 is a household and is a unit is stretching things, 491 00:27:47,960 --> 00:27:50,720 and yet that was our starting point, to have 492 00:27:50,720 --> 00:27:52,910 a household-level survey. 493 00:27:52,910 --> 00:27:57,560 For one thing, the demands even in the measurement 494 00:27:57,560 --> 00:28:02,060 of interviewing everybody individually is horrendous. 495 00:28:02,060 --> 00:28:04,820 Also, you know some assets are held jointly 496 00:28:04,820 --> 00:28:08,180 or people may disagree about who's 497 00:28:08,180 --> 00:28:12,210 got the real claims on them. 498 00:28:12,210 --> 00:28:14,180 I mean, that said, there are instances clearly 499 00:28:14,180 --> 00:28:21,020 where the husband may be hiding some of his income 500 00:28:21,020 --> 00:28:24,950 or the young teenager still living at home 501 00:28:24,950 --> 00:28:28,670 actually have some earnings in his or her bank account 502 00:28:28,670 --> 00:28:30,920 and that's kind of not commingled with the rest 503 00:28:30,920 --> 00:28:36,290 of the family budget, and those are real, real problems for us. 504 00:28:36,290 --> 00:28:36,830 Yes? 505 00:28:36,830 --> 00:28:38,997 AUDIENCE: I mean, I think to be fair to some extent, 506 00:28:38,997 --> 00:28:41,690 you can make that criticism of corporate accounting as well, 507 00:28:41,690 --> 00:28:43,290 that maybe they're like-- 508 00:28:43,290 --> 00:28:47,600 they're not acting as a unit or there are people doing things 509 00:28:47,600 --> 00:28:49,245 that you can't see in the accounts 510 00:28:49,245 --> 00:28:52,260 and that just looking at a firm statement 511 00:28:52,260 --> 00:28:54,260 would be different if you would like to sit down 512 00:28:54,260 --> 00:28:55,850 with every member of a corporate firm 513 00:28:55,850 --> 00:28:58,735 and ask, what did you spend money on this month? 514 00:28:58,735 --> 00:29:00,360 Where did you-- all this sort of stuff. 515 00:29:00,360 --> 00:29:03,260 So I feel like to some extent, the criticisms here 516 00:29:03,260 --> 00:29:06,260 are criticisms that apply to the general framework of accounting 517 00:29:06,260 --> 00:29:08,860 and not to the household problem specifically. 518 00:29:08,860 --> 00:29:11,193 ROBERT TOWNSEND: Yeah, there's is some stuff I took out, 519 00:29:11,193 --> 00:29:13,730 otherwise the lecture would be even longer, which 520 00:29:13,730 --> 00:29:18,380 is, do these problems-- you have a conglomerate which consists 521 00:29:18,380 --> 00:29:22,360 of different firms, and there are issues there 522 00:29:22,360 --> 00:29:26,260 about the flows from one to the other. 523 00:29:26,260 --> 00:29:28,480 Here, you could treat a marriage, for example, 524 00:29:28,480 --> 00:29:32,680 as a merger of two firms, and there is development literature 525 00:29:32,680 --> 00:29:33,310 like that. 526 00:29:33,310 --> 00:29:35,950 Mark Rosenzweig has written I think 527 00:29:35,950 --> 00:29:39,400 quite convincingly on the marriage of daughters 528 00:29:39,400 --> 00:29:42,820 as basically insurance and business transactions 529 00:29:42,820 --> 00:29:45,880 and so on. 530 00:29:45,880 --> 00:29:53,120 So there are-- a divorce is like a breakup and so on. 531 00:30:01,700 --> 00:30:05,240 We try to measure liquidity, and so 532 00:30:05,240 --> 00:30:08,090 it's tempting to just have everything in cash, 533 00:30:08,090 --> 00:30:12,410 but actually here and in India, grain, rice here, 534 00:30:12,410 --> 00:30:17,180 and sorghum in India is people borrow and lend in it, 535 00:30:17,180 --> 00:30:18,890 they make commitments to pay in it. 536 00:30:18,890 --> 00:30:23,630 So we actually have in kind barter transactions. 537 00:30:23,630 --> 00:30:25,490 Now here again, you could imagine-- 538 00:30:25,490 --> 00:30:28,460 and when I teach monetary economics, 539 00:30:28,460 --> 00:30:31,130 we get into this for sure. 540 00:30:31,130 --> 00:30:34,910 The notion of liquidity is how quickly one could sell an asset 541 00:30:34,910 --> 00:30:37,520 or is there a deep market for it. 542 00:30:37,520 --> 00:30:41,420 So this is, again, both a judgment call here 543 00:30:41,420 --> 00:30:44,840 because we aggregate it up, but also opens up 544 00:30:44,840 --> 00:30:49,460 a really interesting sort of line of research where you 545 00:30:49,460 --> 00:30:53,360 can study liquidity and transactions in these village 546 00:30:53,360 --> 00:30:55,550 economies. 547 00:30:55,550 --> 00:30:56,870 What to do with livestock? 548 00:30:59,630 --> 00:31:01,300 What does a cow-- 549 00:31:01,300 --> 00:31:07,460 a cash cow-- well, so we just separate the asset 550 00:31:07,460 --> 00:31:09,560 from the income and expense part. 551 00:31:09,560 --> 00:31:11,720 So the cow is the asset. 552 00:31:11,720 --> 00:31:16,170 The cow, if it's young, actually appreciates in value over time. 553 00:31:16,170 --> 00:31:18,410 You get a capital gain out of it. 554 00:31:18,410 --> 00:31:22,400 Cattle can die prematurely, you'll get a capital loss. 555 00:31:22,400 --> 00:31:25,490 We actually try to book all those things. 556 00:31:25,490 --> 00:31:28,940 Meanwhile, the cow-- the dairy cattle up in Lopburi 557 00:31:28,940 --> 00:31:30,710 are delivering milk. 558 00:31:30,710 --> 00:31:33,590 So that's the revenue stream off the asset, actually. 559 00:31:33,590 --> 00:31:36,990 It's a great analogy, like fruit off the tree. 560 00:31:36,990 --> 00:31:40,030 They're not Lucas trees, they're, I don't know, 561 00:31:40,030 --> 00:31:41,120 Lopburi animals. 562 00:31:45,220 --> 00:31:48,910 And gifts, as I've said-- 563 00:31:48,910 --> 00:31:52,200 so I don't think I'll belabor that. 564 00:31:52,200 --> 00:31:55,020 I spared you a lot. 565 00:31:55,020 --> 00:31:57,450 Just want to introduce the concept. 566 00:31:57,450 --> 00:32:00,240 In the underlying data, you'll see 567 00:32:00,240 --> 00:32:05,140 a transaction, like received wage income in cash. 568 00:32:05,140 --> 00:32:09,080 Now what to do with the answer to that? 569 00:32:09,080 --> 00:32:10,530 50 baht. 570 00:32:10,530 --> 00:32:18,480 Well, it enters in all three incomes, all three statements. 571 00:32:18,480 --> 00:32:23,070 Basically the cash enters an increase in the balance sheet 572 00:32:23,070 --> 00:32:25,020 as an increase in a kind of asset, 573 00:32:25,020 --> 00:32:27,300 it's revenue on the income statement, 574 00:32:27,300 --> 00:32:32,440 and it's incoming cash flow on the statement of cash flow. 575 00:32:32,440 --> 00:32:35,160 Not every transaction in the data 576 00:32:35,160 --> 00:32:37,110 enter on all three accounts. 577 00:32:37,110 --> 00:32:39,810 The struggle was deciding indeed where 578 00:32:39,810 --> 00:32:43,620 to put all of these things, although the accounting 579 00:32:43,620 --> 00:32:47,040 standards double-entry bookkeeping does provide 580 00:32:47,040 --> 00:32:51,300 a discipline-- and yes, we made mistakes initially 581 00:32:51,300 --> 00:32:53,880 and things didn't add up. 582 00:32:53,880 --> 00:32:57,810 So then we realized we hadn't entered things appropriately. 583 00:32:57,810 --> 00:33:00,210 That's what double-entry bookkeeping 584 00:33:00,210 --> 00:33:02,580 is, some clerk having all the transactions 585 00:33:02,580 --> 00:33:05,220 and then doing the books, quote-unquote, consists 586 00:33:05,220 --> 00:33:09,300 of entering all those daily transactions into ledgers 587 00:33:09,300 --> 00:33:13,670 and creating statements. 588 00:33:13,670 --> 00:33:16,460 So these happened to all be cash transactions, that's 589 00:33:16,460 --> 00:33:19,070 kind of an accident, it's just the first page 590 00:33:19,070 --> 00:33:21,930 of about eight or 10 of them in the book, 591 00:33:21,930 --> 00:33:25,080 and I'll skip the rest. 592 00:33:25,080 --> 00:33:28,560 Now let's talk about liquidity management. 593 00:33:28,560 --> 00:33:32,720 Here's a statement of cash flow, D for deficit. 594 00:33:32,720 --> 00:33:34,100 So you run a deficit. 595 00:33:34,100 --> 00:33:37,310 The deficit, say, is the difference between your income 596 00:33:37,310 --> 00:33:39,290 in a month-- 597 00:33:39,290 --> 00:33:42,260 cash revenue, I should say-- 598 00:33:42,260 --> 00:33:47,630 and, say, consumption-- minus consumption, 599 00:33:47,630 --> 00:33:49,700 minus investment, OK? 600 00:33:49,700 --> 00:33:54,410 So it's a deficit, you had more demands for cash 601 00:33:54,410 --> 00:33:55,855 than you received in cash. 602 00:33:58,670 --> 00:34:04,870 Well, again, by the construction of the accounts, 603 00:34:04,870 --> 00:34:06,460 everything has to balance. 604 00:34:06,460 --> 00:34:11,480 So we know exactly how a deficit is financed. 605 00:34:11,480 --> 00:34:13,960 We even try to measure the currency. 606 00:34:13,960 --> 00:34:18,070 So we have F1 through Fn are these financing devices, 607 00:34:18,070 --> 00:34:20,650 and then you can do a little math, 608 00:34:20,650 --> 00:34:24,969 basically, multiply both sides by D, 609 00:34:24,969 --> 00:34:28,520 but D is the sum of the F, so basically you get this, 610 00:34:28,520 --> 00:34:30,370 and then you square it, and then you 611 00:34:30,370 --> 00:34:33,820 divide by the different squared, and all of a sudden you're 612 00:34:33,820 --> 00:34:36,040 looking at a variance-- 613 00:34:36,040 --> 00:34:41,810 covariance decomposition, which is exactly true. 614 00:34:41,810 --> 00:34:46,360 So if you want to know the role that a particular financing 615 00:34:46,360 --> 00:34:50,409 device like F1 is playing in terms of smoothing 616 00:34:50,409 --> 00:34:54,790 the deficits, it's basically like running 617 00:34:54,790 --> 00:35:02,440 a regression of the deficit onto the financing device 618 00:35:02,440 --> 00:35:04,780 and getting a regression coefficient. 619 00:35:04,780 --> 00:35:06,070 It's really cute. 620 00:35:06,070 --> 00:35:09,070 That you could do it one financing device 621 00:35:09,070 --> 00:35:11,260 at a time and the sum of those coefficients 622 00:35:11,260 --> 00:35:13,330 has to add up to 1. 623 00:35:13,330 --> 00:35:16,390 So this isn't the only way to talk about-- 624 00:35:19,010 --> 00:35:22,040 this is variance/covariance, not order of magnitude. 625 00:35:22,040 --> 00:35:25,320 If you have two devices that track each other perfectly 626 00:35:25,320 --> 00:35:28,220 but there's always a gap, this thing will say, 627 00:35:28,220 --> 00:35:31,790 it's the perfect smoother, that's the thing that's used, 628 00:35:31,790 --> 00:35:33,380 but in fact, the gap remains. 629 00:35:33,380 --> 00:35:35,480 So you have to be a little cautious about 630 00:35:35,480 --> 00:35:37,100 the interpretation sometimes. 631 00:35:43,480 --> 00:35:44,810 So how do you finance? 632 00:35:44,810 --> 00:35:47,380 Well you could decrease your deposits 633 00:35:47,380 --> 00:35:52,990 if you have them in a financial institution, you could-- 634 00:35:52,990 --> 00:35:55,960 this is an odd way to put it-- decrease in your net ROSCA 635 00:35:55,960 --> 00:35:58,390 position, which means basically you don't want to pay in, 636 00:35:58,390 --> 00:36:00,640 you want to get paid out. 637 00:36:00,640 --> 00:36:03,420 You want to be a recipient. 638 00:36:03,420 --> 00:36:07,240 You could call in your loans, you could borrow, 639 00:36:07,240 --> 00:36:09,595 you could get gifts or decrease your cash holdings. 640 00:36:12,130 --> 00:36:17,410 And for two case study households, 641 00:36:17,410 --> 00:36:18,355 we actually measure-- 642 00:36:21,450 --> 00:36:26,960 and you probably unfortunately can't see it very well, 643 00:36:26,960 --> 00:36:33,430 but this cash is close to 100 or 1, basically, 100%. 644 00:36:36,100 --> 00:36:39,430 These numbers, though, are the quartiles 645 00:36:39,430 --> 00:36:42,650 of the province in which this case study household A lives. 646 00:36:42,650 --> 00:36:47,590 So the median is 76%, this guy's actually on the high side, 647 00:36:47,590 --> 00:36:51,590 but still, in this variance/covariance sense, 648 00:36:51,590 --> 00:36:58,750 3/4 of the deficits is households in Lopburi 649 00:36:58,750 --> 00:37:03,640 are financing their deficits with cash. 650 00:37:03,640 --> 00:37:04,140 Cash. 651 00:37:04,140 --> 00:37:06,150 They're holding great gobs of it. 652 00:37:06,150 --> 00:37:09,000 Unbelievable amounts of it in the house. 653 00:37:09,000 --> 00:37:12,450 And when they get these adverse shocks 654 00:37:12,450 --> 00:37:16,683 or they have more expenses than inputs, it outcomes to cash. 655 00:37:16,683 --> 00:37:18,850 You want to say, well why isn't-- is it in a savings 656 00:37:18,850 --> 00:37:19,350 account? 657 00:37:19,350 --> 00:37:20,470 Not much. 658 00:37:20,470 --> 00:37:21,190 Negligible. 659 00:37:24,740 --> 00:37:28,800 Now I was a little critical of this sort 660 00:37:28,800 --> 00:37:30,690 of measuring savings accounts. 661 00:37:30,690 --> 00:37:33,180 This is a measure of savings account. 662 00:37:33,180 --> 00:37:35,340 I guess at the end of the day, the issue 663 00:37:35,340 --> 00:37:38,430 is, are they managing their cash well? 664 00:37:38,430 --> 00:37:39,792 This is the starting point. 665 00:37:39,792 --> 00:37:41,250 We have the measurement, maybe they 666 00:37:41,250 --> 00:37:43,980 should be putting more of it in the bank 667 00:37:43,980 --> 00:37:45,480 and taking it out when they need it. 668 00:37:45,480 --> 00:37:51,450 They don't do it much, so that is a bit of a puzzle. 669 00:37:51,450 --> 00:37:54,360 Gifts and loans are-- 670 00:37:54,360 --> 00:37:55,620 I think this is not-- 671 00:37:55,620 --> 00:37:58,922 this is out of the book and not the latest version. 672 00:37:58,922 --> 00:38:00,130 AUDIENCE: This is the latest. 673 00:38:00,130 --> 00:38:02,340 ROBERT TOWNSEND: Is it? 674 00:38:02,340 --> 00:38:06,190 So OK. 675 00:38:06,190 --> 00:38:12,070 So you can see these upper quartiles are getting up 676 00:38:12,070 --> 00:38:14,350 to 15%, 20%, 25%. 677 00:38:14,350 --> 00:38:21,220 So gifts are used by some households 678 00:38:21,220 --> 00:38:23,650 substantially as well. 679 00:38:23,650 --> 00:38:26,647 It's not just a pure cash economy. 680 00:38:29,815 --> 00:38:31,440 And like-- well that's cash management. 681 00:38:31,440 --> 00:38:33,970 We can talk about asset management. 682 00:38:33,970 --> 00:38:37,050 It's really the same concept, except instead 683 00:38:37,050 --> 00:38:39,300 of operating on the cash flow, you 684 00:38:39,300 --> 00:38:41,310 do this accrual notion of accounting and look 685 00:38:41,310 --> 00:38:44,730 at sort of net savings. 686 00:38:44,730 --> 00:38:49,680 And I'll come back to that later, essentially. 687 00:38:49,680 --> 00:38:51,570 And the portfolio management. 688 00:38:51,570 --> 00:38:55,010 So here, in answer to the question that 689 00:38:55,010 --> 00:38:58,100 was raised earlier, is looking at something 690 00:38:58,100 --> 00:39:02,690 like profits over assets, which is a return on assets, 691 00:39:02,690 --> 00:39:09,830 and then creating 10 different measurements of it. 692 00:39:09,830 --> 00:39:13,340 Do you want to exclude household consumption of their own output 693 00:39:13,340 --> 00:39:16,040 and not count it into income? 694 00:39:16,040 --> 00:39:19,550 We counted total utility expenses as a business expense, 695 00:39:19,550 --> 00:39:21,560 maybe we shouldn't have done that. 696 00:39:21,560 --> 00:39:24,680 Maybe it was a household expense for, quote, 697 00:39:24,680 --> 00:39:25,745 consumption purposes. 698 00:39:28,420 --> 00:39:30,730 So service flow from fixed assets, 699 00:39:30,730 --> 00:39:33,290 which would be very natural to do for durable goods, 700 00:39:33,290 --> 00:39:34,130 we tried that. 701 00:39:37,160 --> 00:39:40,047 We could take income but then add gifts and transfers 702 00:39:40,047 --> 00:39:41,630 even though it's really not associated 703 00:39:41,630 --> 00:39:44,960 with a project, and especially this sort of cash. 704 00:39:47,630 --> 00:39:50,390 So it turned out that this distinction 705 00:39:50,390 --> 00:39:54,890 of cash versus accrual was very important. 706 00:39:54,890 --> 00:39:57,470 The treatment of gifts was very important. 707 00:39:57,470 --> 00:40:00,260 And up here, which where I didn't start, but I could, 708 00:40:00,260 --> 00:40:05,120 is in trying to get at the cost of household labor-- 709 00:40:05,120 --> 00:40:08,010 own household labor used in production, 710 00:40:08,010 --> 00:40:13,460 that is a monster difficulty, because you don't see for many 711 00:40:13,460 --> 00:40:17,510 of them what they would have earned as wages in someone 712 00:40:17,510 --> 00:40:21,020 else's farm and so on, yet it's clear that's very important 713 00:40:21,020 --> 00:40:22,891 and it makes a very big difference. 714 00:40:26,120 --> 00:40:28,970 So hopefully knowing that, one can bend over 715 00:40:28,970 --> 00:40:32,450 backwards to try to get a better sense of the opportunity 716 00:40:32,450 --> 00:40:33,710 cost of labor. 717 00:40:33,710 --> 00:40:39,320 So as I said, let's look at some uses of these. 718 00:40:39,320 --> 00:40:49,540 This is a paper with Anan on the wealth distribution, 719 00:40:49,540 --> 00:40:53,340 and let's look at that 1%. 720 00:40:53,340 --> 00:40:54,330 Let's go get 'em. 721 00:40:54,330 --> 00:40:56,300 Let's get the top 1%. 722 00:40:56,300 --> 00:41:00,530 How much wealth does the top 1% have? 723 00:41:00,530 --> 00:41:02,810 It's huge. 724 00:41:02,810 --> 00:41:08,540 They start out in 1999 with about 35% of the total wealth. 725 00:41:11,530 --> 00:41:15,430 Now it's actually diminished. 726 00:41:15,430 --> 00:41:18,910 This is the-- frankly, a wonderful thing 727 00:41:18,910 --> 00:41:21,190 to have all these many, many years of data. 728 00:41:23,710 --> 00:41:26,110 It's diminished to 26%. 729 00:41:26,110 --> 00:41:29,400 What's going on is this stuff at the bottom end 730 00:41:29,400 --> 00:41:35,770 where the bottom 50% have 5% of the wealth. 731 00:41:35,770 --> 00:41:41,900 By the way, this is typical of the US and European history, 732 00:41:41,900 --> 00:41:45,230 and it's very skewed wealth distributions. 733 00:41:45,230 --> 00:41:49,790 But this thing actually doubles over the space 734 00:41:49,790 --> 00:41:53,110 of about 12 years here. 735 00:41:53,110 --> 00:41:55,043 AUDIENCE: Is this including cash? 736 00:41:55,043 --> 00:41:55,960 ROBERT TOWNSEND: Yeah. 737 00:41:55,960 --> 00:41:57,390 AUDIENCE: So it could be like cash. 738 00:41:57,390 --> 00:41:58,598 ROBERT TOWNSEND: It could be. 739 00:42:01,140 --> 00:42:02,830 There was a question. 740 00:42:02,830 --> 00:42:04,320 AUDIENCE: Oh yes. 741 00:42:04,320 --> 00:42:08,730 Not related to this, but what household characteristics does 742 00:42:08,730 --> 00:42:15,463 [INAUDIBLE] economic ones like [INAUDIBLE] household members-- 743 00:42:15,463 --> 00:42:16,880 ROBERT TOWNSEND: Yeah, we have all 744 00:42:16,880 --> 00:42:19,400 of that, all the demography. 745 00:42:19,400 --> 00:42:23,015 Age, education. 746 00:42:23,015 --> 00:42:25,000 Yeah. 747 00:42:25,000 --> 00:42:30,550 So in answer to your question, we'll see what the-- 748 00:42:30,550 --> 00:42:32,520 that among some of these poor people, 749 00:42:32,520 --> 00:42:35,450 they have a very high return on assets, real physical assets, 750 00:42:35,450 --> 00:42:37,450 and we'll see where they're putting their money. 751 00:42:41,970 --> 00:42:45,470 So inequalities going down in some sense, right? 752 00:42:45,470 --> 00:42:49,160 So anyway, this is not the story of a poverty trap. 753 00:42:51,710 --> 00:42:54,020 Now I'm not claiming this is universal truth, 754 00:42:54,020 --> 00:42:56,960 I'm not claiming there aren't poverty traps, really, 755 00:42:56,960 --> 00:43:01,100 and models and in the real world. 756 00:43:01,100 --> 00:43:02,600 Many countries still have-- 757 00:43:02,600 --> 00:43:08,750 like India-- vast populations of poor people, 758 00:43:08,750 --> 00:43:12,430 but maybe be a little leery that at least in the case 759 00:43:12,430 --> 00:43:16,190 of Thailand, you think about starting at a low level-- 760 00:43:16,190 --> 00:43:18,230 and some of these guys remain in poverty, 761 00:43:18,230 --> 00:43:22,090 but there is a huge growth dynamic going on. 762 00:43:22,090 --> 00:43:22,700 Yes? 763 00:43:22,700 --> 00:43:26,270 AUDIENCE: And how much is the very-- 764 00:43:26,270 --> 00:43:28,230 in terms of the actual distribution of income, 765 00:43:28,230 --> 00:43:30,890 how much of the very rich got surveyed? 766 00:43:30,890 --> 00:43:32,877 How much-- of this-- 767 00:43:32,877 --> 00:43:34,460 the people who got surveyed, were they 768 00:43:34,460 --> 00:43:36,080 like a top truncated distribution, 769 00:43:36,080 --> 00:43:38,168 like their very interested and you know, the ones 770 00:43:38,168 --> 00:43:39,210 who answered this survey. 771 00:43:39,210 --> 00:43:40,400 It's usual-- 772 00:43:40,400 --> 00:43:43,200 ROBERT TOWNSEND: Yeah, it's-- 773 00:43:43,200 --> 00:43:45,420 well, it's a stratified random sample. 774 00:43:45,420 --> 00:43:48,000 In some cases we actually ended up with everybody 775 00:43:48,000 --> 00:43:52,620 in the village, but maybe only two out of the 16 or so 776 00:43:52,620 --> 00:43:54,495 villages did that happen. 777 00:43:57,020 --> 00:43:59,660 I think it's more typical that we're 778 00:43:59,660 --> 00:44:02,210 worried the rich guys are hiding some of their assets 779 00:44:02,210 --> 00:44:07,620 rather than them not responding at all. 780 00:44:07,620 --> 00:44:09,630 I could not run these surveys on my own, 781 00:44:09,630 --> 00:44:13,050 I have built up close friendships and collaborators 782 00:44:13,050 --> 00:44:18,000 in Thailand who are amazingly good at getting households 783 00:44:18,000 --> 00:44:21,300 to participate, and there are occasional scares where 784 00:44:21,300 --> 00:44:24,130 they think the government's going to start taxing them, 785 00:44:24,130 --> 00:44:28,530 the chicken farmers were making great gobs of money in profits, 786 00:44:28,530 --> 00:44:34,650 and rumors circulated that they better conceal their wealth. 787 00:44:34,650 --> 00:44:36,780 They dropped out, but we got almost all of them 788 00:44:36,780 --> 00:44:39,684 back in after a while. 789 00:44:39,684 --> 00:44:42,930 AUDIENCE: So I told them that attrition is very low, but what 790 00:44:42,930 --> 00:44:44,690 about the initial response rate? 791 00:44:44,690 --> 00:44:45,620 What is that? 792 00:44:45,620 --> 00:44:46,505 Close to 100%? 793 00:44:46,505 --> 00:44:48,005 Like when you actually went in and-- 794 00:44:48,005 --> 00:44:48,922 ROBERT TOWNSEND: Yeah. 795 00:44:48,922 --> 00:44:49,680 It was very high. 796 00:44:53,488 --> 00:44:55,868 AUDIENCE: What do they get for answering the survey? 797 00:44:55,868 --> 00:44:56,344 ROBERT TOWNSEND: Hmm? 798 00:44:56,344 --> 00:44:57,719 AUDIENCE: I think Harry mentioned 799 00:44:57,719 --> 00:44:59,740 that people get gifts for-- 800 00:44:59,740 --> 00:45:02,050 AUDIENCE: No, it's not substantial. 801 00:45:02,050 --> 00:45:03,770 It's just like you get a new year's gift. 802 00:45:03,770 --> 00:45:05,470 So it's not worth the time. 803 00:45:05,470 --> 00:45:07,787 So they don't like look at it from a financial-- 804 00:45:07,787 --> 00:45:09,370 ROBERT TOWNSEND: We give them a bottle 805 00:45:09,370 --> 00:45:11,770 of fish sauce or a blanket, or something, 806 00:45:11,770 --> 00:45:15,070 and that's a Thai sort of cultural thing 807 00:45:15,070 --> 00:45:19,540 to establish goodwill and that you care about a person. 808 00:45:19,540 --> 00:45:21,700 We just did not and we deliberately 809 00:45:21,700 --> 00:45:26,642 avoided getting into the business of paying people. 810 00:45:26,642 --> 00:45:29,100 Because for one thing, then other households in the village 811 00:45:29,100 --> 00:45:35,910 feel like they're getting cheated and it's just-- it's-- 812 00:45:35,910 --> 00:45:39,180 So this is all voluntary participation. 813 00:45:39,180 --> 00:45:41,760 13 years of households answering questions 814 00:45:41,760 --> 00:45:46,515 monthly with only, whatever it is, 2% per year dropping. 815 00:45:50,670 --> 00:45:58,030 So here is-- there's a movie called Falling Down-- 816 00:45:58,030 --> 00:46:00,390 I don't even remember that guy went berserko 817 00:46:00,390 --> 00:46:01,380 with a machine gun. 818 00:46:05,220 --> 00:46:06,240 I always think of that. 819 00:46:10,980 --> 00:46:13,720 So not everybody's wealth is going up, 820 00:46:13,720 --> 00:46:15,750 and in fact, some people actually 821 00:46:15,750 --> 00:46:18,780 find their wealth is falling. 822 00:46:18,780 --> 00:46:21,540 So we can track their net position 823 00:46:21,540 --> 00:46:24,930 in the distribution of wealth, and here, you 824 00:46:24,930 --> 00:46:28,980 can see these people climbing up, 825 00:46:28,980 --> 00:46:31,980 and other people, quote, falling down. 826 00:46:31,980 --> 00:46:35,400 This is the histogram of sort of in percentiles. 827 00:46:35,400 --> 00:46:40,460 By the way, the average has to be 0 because it's-- 828 00:46:40,460 --> 00:46:44,290 the net change is 0 over all the households, 829 00:46:44,290 --> 00:46:49,220 but you can see some substantial-- 830 00:46:49,220 --> 00:46:52,886 1 standard deviation is like 14 percentage points. 831 00:46:52,886 --> 00:46:57,473 AUDIENCE: So do you have any [INAUDIBLE] falling down? 832 00:46:57,473 --> 00:46:58,390 ROBERT TOWNSEND: Yeah. 833 00:46:58,390 --> 00:47:02,990 So I guess one thing that sort of got lost in the shuffle 834 00:47:02,990 --> 00:47:08,060 because we didn't decide clearly whether it would show 835 00:47:08,060 --> 00:47:11,150 within the TA session or I would show it here is 836 00:47:11,150 --> 00:47:13,400 kind of a life cycle picture. 837 00:47:13,400 --> 00:47:19,090 So we've created by cohorts, by age. 838 00:47:19,090 --> 00:47:23,250 And you can see, especially in the areas near Bangkok, 839 00:47:23,250 --> 00:47:25,980 a classic life cycle. 840 00:47:25,980 --> 00:47:29,410 So as these households are young, 841 00:47:29,410 --> 00:47:33,280 they start to accumulate wealth, but after a while, 842 00:47:33,280 --> 00:47:34,990 especially as their income falls off, 843 00:47:34,990 --> 00:47:36,680 they start running down their assets. 844 00:47:36,680 --> 00:47:39,440 So this does not distinguish by age. 845 00:47:39,440 --> 00:47:42,820 So it's a bit misleading, it's not like there's some-- 846 00:47:42,820 --> 00:47:46,240 necessarily some young household that's just consistently eating 847 00:47:46,240 --> 00:47:49,090 more than their income. 848 00:47:49,090 --> 00:47:53,100 There are households like that, and that raises this issue 849 00:47:53,100 --> 00:47:55,350 before of what's going on. 850 00:47:55,350 --> 00:47:59,910 I mean, if the husband isn't there, for example, 851 00:47:59,910 --> 00:48:03,030 and the wife is running some hair salon, 852 00:48:03,030 --> 00:48:07,110 she's consistently eating more than then the household income, 853 00:48:07,110 --> 00:48:11,200 but you kind of wonder if there isn't something going on, 854 00:48:11,200 --> 00:48:13,080 and we just don't have the husband there 855 00:48:13,080 --> 00:48:17,430 who chooses either for personal or occupation reasons 856 00:48:17,430 --> 00:48:20,790 to be in Bangkok the whole time. 857 00:48:20,790 --> 00:48:25,300 So then we get a misleading picture 858 00:48:25,300 --> 00:48:34,020 that she may be in trouble or she may know more the future 859 00:48:34,020 --> 00:48:34,620 than we do. 860 00:48:37,150 --> 00:48:41,750 So let's do a simple decomposition. 861 00:48:41,750 --> 00:48:43,660 Here's savings. 862 00:48:43,660 --> 00:48:48,220 Savings on both sides in absolute amount. 863 00:48:48,220 --> 00:48:50,860 And then divide and multiply by profits 864 00:48:50,860 --> 00:48:53,470 from the household and businesses, all of them 865 00:48:53,470 --> 00:48:57,040 summed up, and divide and multiply by assets. 866 00:48:57,040 --> 00:48:59,200 So that has to be true. 867 00:48:59,200 --> 00:49:00,520 It's an identity. 868 00:49:00,520 --> 00:49:05,830 But savings over basically profits 869 00:49:05,830 --> 00:49:10,810 is a savings rate out of income, and profits over assets 870 00:49:10,810 --> 00:49:14,800 is the return on assets post-multiplied 871 00:49:14,800 --> 00:49:17,510 by the level of assets. 872 00:49:17,510 --> 00:49:22,600 So basically you can look at-- 873 00:49:36,060 --> 00:49:41,010 you can look at the change in wealth 874 00:49:41,010 --> 00:49:45,440 or the percentage change in wealth, and wealth comes-- 875 00:49:45,440 --> 00:49:48,100 where is a change in wealth coming from? 876 00:49:48,100 --> 00:49:52,170 It's coming from savings plus income and gifts. 877 00:49:52,170 --> 00:49:55,450 The savings thing is decomposed up here. 878 00:49:55,450 --> 00:49:59,370 So part of the mechanical accounting drivers 879 00:49:59,370 --> 00:50:03,990 of increasing wealth has to do with savings rates 880 00:50:03,990 --> 00:50:09,550 and rates of return on assets. 881 00:50:09,550 --> 00:50:12,080 And maybe gifts if they're important. 882 00:50:12,080 --> 00:50:16,630 So here is the correlation of the growth 883 00:50:16,630 --> 00:50:21,903 of net worth with savings rates, and depending 884 00:50:21,903 --> 00:50:23,320 on whether the unit of observation 885 00:50:23,320 --> 00:50:26,770 is household month or household year or households averaged up 886 00:50:26,770 --> 00:50:30,010 over all of the months and years of the data, 887 00:50:30,010 --> 00:50:36,940 you do see some positive significant correlations. 888 00:50:36,940 --> 00:50:40,390 So in fact, not too surprisingly, 889 00:50:40,390 --> 00:50:43,450 some of the increase in net worth 890 00:50:43,450 --> 00:50:48,580 is coming from households who have high savings rates. 891 00:50:48,580 --> 00:50:54,740 But the bigger part of the story is the correlation 892 00:50:54,740 --> 00:50:57,620 with the return on assets. 893 00:50:57,620 --> 00:51:02,420 And there, it's consistent pretty much at all levels. 894 00:51:06,190 --> 00:51:10,030 So household by household with our measurement, 895 00:51:10,030 --> 00:51:13,930 we look at their productivity in terms of rate of return, 896 00:51:13,930 --> 00:51:17,720 and then see whether their net wealth is going up or down, 897 00:51:17,720 --> 00:51:20,650 and it's the households who have high rates of return who 898 00:51:20,650 --> 00:51:22,420 have the high-- 899 00:51:22,420 --> 00:51:24,810 highest rates of increase in their net worth. 900 00:51:30,040 --> 00:51:31,620 And it's quite persistent. 901 00:51:31,620 --> 00:51:35,820 Here, we look at return on assets in the first half 902 00:51:35,820 --> 00:51:40,830 and second half of the sample at the time that we did it. 903 00:51:40,830 --> 00:51:46,350 So if they were identical, they would lie on a 45-degree line, 904 00:51:46,350 --> 00:51:50,670 and these scatter points are close with one exception, which 905 00:51:50,670 --> 00:51:53,802 is Buriram. 906 00:51:53,802 --> 00:51:55,930 Oh, you should be thinking models at this point. 907 00:51:55,930 --> 00:52:01,110 Remember the productivity, the TFP thing? 908 00:52:01,110 --> 00:52:03,975 That's the thing sitting outside multiplicatively in front 909 00:52:03,975 --> 00:52:05,100 of the production function? 910 00:52:05,100 --> 00:52:08,730 These are household-specific TFP numbers sort of. 911 00:52:08,730 --> 00:52:11,280 It's not a very sophisticated-- production function 912 00:52:11,280 --> 00:52:12,930 is just linear. 913 00:52:12,930 --> 00:52:15,890 So it's not really just-- 914 00:52:15,890 --> 00:52:19,080 you'd rather have like the marginal product of capital 915 00:52:19,080 --> 00:52:23,160 and pre-multiply, this is a linear production function. 916 00:52:23,160 --> 00:52:27,770 The marginal product is just the average. 917 00:52:27,770 --> 00:52:28,840 But it's very persistent. 918 00:52:28,840 --> 00:52:34,300 So in these models, the issue is, are those TFP shocks IID 919 00:52:34,300 --> 00:52:36,070 over households, are they the same 920 00:52:36,070 --> 00:52:38,190 unless you get blasted with some shock? 921 00:52:38,190 --> 00:52:42,010 And this suggests that the household level 922 00:52:42,010 --> 00:52:43,950 it's really quite persistent. 923 00:52:43,950 --> 00:52:50,690 Buriram is an interesting exception, 924 00:52:50,690 --> 00:52:52,760 and I'll just say it in words, there 925 00:52:52,760 --> 00:52:57,020 are many more occupations shifts in Buriram 926 00:52:57,020 --> 00:52:59,390 than in the other three provinces. 927 00:52:59,390 --> 00:53:03,870 It turns out these villages aren't really villages anymore, 928 00:53:03,870 --> 00:53:06,350 they've paved over our soil moisture readers 929 00:53:06,350 --> 00:53:09,350 and they become part of the town. 930 00:53:09,350 --> 00:53:11,720 There's a big construction boom going on. 931 00:53:11,720 --> 00:53:14,540 Part of that is pararubber, part of it 932 00:53:14,540 --> 00:53:19,580 is Scandinavian tourists coming in marrying Thai women 933 00:53:19,580 --> 00:53:23,282 and staying. 934 00:53:23,282 --> 00:53:26,990 The place is just like a construction boom. 935 00:53:26,990 --> 00:53:30,320 So people shifted from rice-growing 936 00:53:30,320 --> 00:53:32,780 or money-lending or other things to laying 937 00:53:32,780 --> 00:53:35,420 tile and all these things, and they 938 00:53:35,420 --> 00:53:37,310 had a higher return on their assets 939 00:53:37,310 --> 00:53:40,700 as a result on average of those switches. 940 00:53:40,700 --> 00:53:42,120 So that's kind of reassuring. 941 00:53:42,120 --> 00:53:44,360 It's another sense in which households 942 00:53:44,360 --> 00:53:47,960 are aware of their success. 943 00:53:47,960 --> 00:53:51,560 And here, coming back to Witt's question, 944 00:53:51,560 --> 00:53:54,600 if you partition into low, medium, 945 00:53:54,600 --> 00:53:56,510 and high return on assets and looked 946 00:53:56,510 --> 00:54:01,850 at what they did with their increasing wealth, 947 00:54:01,850 --> 00:54:08,050 these high ROA guys are putting money back in the business. 948 00:54:08,050 --> 00:54:10,460 They're buying equipment, they're investing and putting 949 00:54:10,460 --> 00:54:12,940 it into their business. 950 00:54:12,940 --> 00:54:16,100 And that's not true of the medium or low guys. 951 00:54:16,100 --> 00:54:18,120 These guys are doing the financial assets. 952 00:54:18,120 --> 00:54:21,680 So more of their increasing financial wealth 953 00:54:21,680 --> 00:54:27,440 is potentially in cash, but to the extent that we measured ROA 954 00:54:27,440 --> 00:54:29,390 accurately, which we have tried very 955 00:54:29,390 --> 00:54:32,120 hard to do in all kinds of different ways, we're getting 956 00:54:32,120 --> 00:54:35,240 the reinforcing message here that we've measured it 957 00:54:35,240 --> 00:54:38,775 accurately because they seem to do what you would think, 958 00:54:38,775 --> 00:54:41,150 which is, you're not going to put your money in a savings 959 00:54:41,150 --> 00:54:45,150 account when you've got a really high return. 960 00:54:45,150 --> 00:54:47,910 And later in another lecture will try to adjust for risk. 961 00:54:51,340 --> 00:54:57,380 So now we'll aggregate it up to villages 962 00:54:57,380 --> 00:54:59,090 and use those same financial accounts. 963 00:55:03,120 --> 00:55:06,260 We do have to struggle again with this dual role 964 00:55:06,260 --> 00:55:11,210 that households play as consumers and producers. 965 00:55:11,210 --> 00:55:14,140 So much of economics is driven by here 966 00:55:14,140 --> 00:55:17,690 is firms maximizing profits, here is households maximizing 967 00:55:17,690 --> 00:55:19,820 utility-- these are households running businesses, 968 00:55:19,820 --> 00:55:21,660 so what are we going to do? 969 00:55:21,660 --> 00:55:25,590 And in particular, what are we going to do with the labor? 970 00:55:25,590 --> 00:55:28,910 Well, we made a decision, although here, we do 971 00:55:28,910 --> 00:55:31,180 check and do robustness checks. 972 00:55:31,180 --> 00:55:33,320 And what I'm going to show you today 973 00:55:33,320 --> 00:55:36,500 is treating even the labor income as something 974 00:55:36,500 --> 00:55:42,620 like consulting income, like they're providing a service-- 975 00:55:42,620 --> 00:55:45,110 their business is to provide a labor 976 00:55:45,110 --> 00:55:48,440 service to other households, and they get profits from that. 977 00:55:54,820 --> 00:55:58,420 Now if you think about a production sector and aggregate 978 00:55:58,420 --> 00:56:03,850 up, to the extent that inputs from one business are-- 979 00:56:03,850 --> 00:56:06,310 the outputs from one business are an input to the other, 980 00:56:06,310 --> 00:56:08,620 the net is zero and it doesn't count. 981 00:56:08,620 --> 00:56:12,220 But in these villages, the output of one business 982 00:56:12,220 --> 00:56:15,760 could be someone else's consumption, 983 00:56:15,760 --> 00:56:18,200 and it doesn't net out. 984 00:56:18,200 --> 00:56:20,030 Both get measured. 985 00:56:20,030 --> 00:56:22,580 As it would if you're distinguishing households 986 00:56:22,580 --> 00:56:25,190 from firms. 987 00:56:25,190 --> 00:56:28,940 We can actually measure and ask about the transactions. 988 00:56:28,940 --> 00:56:32,750 So we know the transaction partners almost. 989 00:56:32,750 --> 00:56:36,050 We did screw up with consumption because we 990 00:56:36,050 --> 00:56:38,150 forgot to ask consistently where they 991 00:56:38,150 --> 00:56:42,230 buy stuff, which has to do with the price thing also mentioned 992 00:56:42,230 --> 00:56:43,730 earlier. 993 00:56:43,730 --> 00:56:45,680 But fortunately, and I'm sure you'll 994 00:56:45,680 --> 00:56:48,260 be more than happy to take my word for it, 995 00:56:48,260 --> 00:56:52,550 there is an accounting identity, so you can kind of back up 996 00:56:52,550 --> 00:56:57,770 as a residual how much of that output is basically 997 00:56:57,770 --> 00:57:01,850 sold and consumed in the village because we measured everything 998 00:57:01,850 --> 00:57:03,300 else. 999 00:57:03,300 --> 00:57:05,197 In other words, on the buying side, 1000 00:57:05,197 --> 00:57:07,780 we don't see it, but-- because we don't know where they bought 1001 00:57:07,780 --> 00:57:10,210 it, but we actually figured out on the selling side 1002 00:57:10,210 --> 00:57:12,965 that it came from somebody who produced it in the village. 1003 00:57:20,060 --> 00:57:21,740 Measurement error, you asked-- somebody 1004 00:57:21,740 --> 00:57:25,070 asked about the rich guys not participating. 1005 00:57:25,070 --> 00:57:28,730 If a moneylender were like the central node 1006 00:57:28,730 --> 00:57:32,690 and the money lender refused to answer our questions, 1007 00:57:32,690 --> 00:57:34,190 we're going to get really screwed up 1008 00:57:34,190 --> 00:57:38,127 in terms of the flow of funds and the balance of payments 1009 00:57:38,127 --> 00:57:38,960 and everything else. 1010 00:57:38,960 --> 00:57:41,600 Because we are going to act like the average overall-- 1011 00:57:41,600 --> 00:57:45,260 the households in the village is the representation 1012 00:57:45,260 --> 00:57:49,397 of what's going on in the village itself as a whole. 1013 00:57:49,397 --> 00:57:51,230 To the extent that there's measurement error 1014 00:57:51,230 --> 00:57:53,935 but there is IID over households, 1015 00:57:53,935 --> 00:57:56,060 and to the extent that we have a lot of households, 1016 00:57:56,060 --> 00:57:59,120 then hopefully that helps make the case 1017 00:57:59,120 --> 00:58:02,750 that we've got a reasonably good measure. 1018 00:58:10,690 --> 00:58:14,225 So how do you create these accounts? 1019 00:58:17,550 --> 00:58:20,035 What is GNP anyway? 1020 00:58:20,035 --> 00:58:20,535 GDP? 1021 00:58:23,130 --> 00:58:26,674 Everyone seems to be obsessed about it. 1022 00:58:26,674 --> 00:58:31,180 OK, it just comes from the income statement. 1023 00:58:31,180 --> 00:58:33,660 So basically, here's a statement of income, 1024 00:58:33,660 --> 00:58:35,340 it's what you would expect. 1025 00:58:35,340 --> 00:58:39,000 You've got revenues come from production, or for that matter, 1026 00:58:39,000 --> 00:58:42,390 if you're a lender or saver from interest, 1027 00:58:42,390 --> 00:58:43,620 you've got capital gains. 1028 00:58:43,620 --> 00:58:46,230 You subtract off capital losses, maybe 1029 00:58:46,230 --> 00:58:51,870 you have sort of a paid payment from an insurance indemnity. 1030 00:58:51,870 --> 00:58:54,900 So those are revenues, here is basically expenses, 1031 00:58:54,900 --> 00:58:56,940 production expenses, interest expenses 1032 00:58:56,940 --> 00:59:01,910 on loans, depreciation, insurance premia, taxes, et 1033 00:59:01,910 --> 00:59:02,440 cetera. 1034 00:59:02,440 --> 00:59:10,960 So net income before tax-- 1035 00:59:10,960 --> 00:59:13,920 before income tax but after property tax 1036 00:59:13,920 --> 00:59:16,350 is what makes these things balance because this 1037 00:59:16,350 --> 00:59:17,610 is basically the profit-- 1038 00:59:17,610 --> 00:59:21,920 it's basically revenues less expenses. 1039 00:59:21,920 --> 00:59:26,060 So that should be comfortable, sound sort of 1040 00:59:26,060 --> 00:59:28,310 reassuringly familiar. 1041 00:59:28,310 --> 00:59:33,740 All that we do is basically take this stuff 1042 00:59:33,740 --> 00:59:36,440 and subtract it off from both sides. 1043 00:59:36,440 --> 00:59:38,420 That cancels it out on the right-hand side 1044 00:59:38,420 --> 00:59:41,160 and puts it on the left-hand side. 1045 00:59:41,160 --> 00:59:46,970 So basically you have production revenue less production 1046 00:59:46,970 --> 00:59:59,070 expenses, and that's basically the rest 1047 00:59:59,070 --> 01:00:02,470 is equal to the payments to factors of production. 1048 01:00:02,470 --> 01:00:05,220 So you're paying stuff out in interest, 1049 01:00:05,220 --> 01:00:11,230 you're paying out in taxes, depreciation is over here, 1050 01:00:11,230 --> 01:00:14,940 and you're paying out to the owners of the enterprise 1051 01:00:14,940 --> 01:00:17,250 namely profits. 1052 01:00:17,250 --> 01:00:20,430 So you may remember vaguely that there's 1053 01:00:20,430 --> 01:00:24,810 two ways to measure income on the output side 1054 01:00:24,810 --> 01:00:28,140 and on the factor payment side, and they add up to each other. 1055 01:00:28,140 --> 01:00:33,240 So this is value-added, basically. 1056 01:00:33,240 --> 01:00:37,170 The only catch here is the way we treated labor, 1057 01:00:37,170 --> 01:00:40,080 you don't see a labor expense over here, 1058 01:00:40,080 --> 01:00:42,330 because normally value-added, you're 1059 01:00:42,330 --> 01:00:45,810 only subtracting off intermediate inputs 1060 01:00:45,810 --> 01:00:48,720 and other purchased inputs, but here, we actually subtract 1061 01:00:48,720 --> 01:00:53,820 off the labor because of the way we conceptualize 1062 01:00:53,820 --> 01:00:59,200 that problem or that issue. 1063 01:00:59,200 --> 01:01:03,150 So you want to see what's happening over time in the four 1064 01:01:03,150 --> 01:01:09,400 provinces, four villages per province, Chachoengsao 1065 01:01:09,400 --> 01:01:17,080 GDP or really village product is going down pretty consistently. 1066 01:01:17,080 --> 01:01:20,080 Now what happened is the shrimp ponds, basically, 1067 01:01:20,080 --> 01:01:21,970 people had converted-- yeah, that 1068 01:01:21,970 --> 01:01:24,160 stuff you're buying in Costco or Walmart, 1069 01:01:24,160 --> 01:01:25,660 those are typically Thai shrimp. 1070 01:01:28,840 --> 01:01:33,390 But the ponds-- so there's some disease. 1071 01:01:33,390 --> 01:01:38,010 And so-- and household, some of them switched. 1072 01:01:38,010 --> 01:01:41,180 And the fish and others now are actually, 1073 01:01:41,180 --> 01:01:43,670 with the world grain prices being relatively high, 1074 01:01:43,670 --> 01:01:49,027 they're refilling in the ponds and planting rice again. 1075 01:01:49,027 --> 01:01:49,610 AUDIENCE: Rob? 1076 01:01:49,610 --> 01:01:50,050 ROBERT TOWNSEND: Yes? 1077 01:01:50,050 --> 01:01:52,370 AUDIENCE: What are the different colored lines [INAUDIBLE] 1078 01:01:52,370 --> 01:01:53,580 ROBERT TOWNSEND: Each of four villages. 1079 01:01:53,580 --> 01:01:53,930 So-- 1080 01:01:53,930 --> 01:01:54,763 AUDIENCE: Oh, I see. 1081 01:01:54,763 --> 01:01:56,740 [INAUDIBLE] 1082 01:01:56,740 --> 01:01:59,560 ROBERT TOWNSEND: So you can see, is every village 1083 01:01:59,560 --> 01:02:00,640 like every other village? 1084 01:02:00,640 --> 01:02:03,550 Well, to some degree, yes, but the levels are different, 1085 01:02:03,550 --> 01:02:09,460 and sometimes even the movements over time are a bit different. 1086 01:02:09,460 --> 01:02:11,620 Another thing to watch out for is the scale here, 1087 01:02:11,620 --> 01:02:16,450 because in order to clearly display each village-- 1088 01:02:16,450 --> 01:02:18,910 each of the four villages in a province, where changing 1089 01:02:18,910 --> 01:02:20,570 the scale of a province. 1090 01:02:20,570 --> 01:02:23,920 Sisaket is a lot poorer than-- 1091 01:02:23,920 --> 01:02:27,760 even in their worst days, Chachoengsao villages 1092 01:02:27,760 --> 01:02:38,060 are better off substantially than Sisaket. 1093 01:02:38,060 --> 01:02:42,500 So the income levels are maybe on average 1094 01:02:42,500 --> 01:02:44,400 three times higher in Chachoengsao. 1095 01:02:48,130 --> 01:02:52,200 They're almost ordered by their distance to Bangkok. 1096 01:02:52,200 --> 01:02:54,440 I won't bore you with this. 1097 01:02:54,440 --> 01:02:56,130 This is just to what do households 1098 01:02:56,130 --> 01:02:59,375 do with their profits? 1099 01:02:59,375 --> 01:03:04,410 And then the story is mostly in the northeast. they eat it. 1100 01:03:04,410 --> 01:03:08,010 And in central region, they're more likely to put it back 1101 01:03:08,010 --> 01:03:12,750 in the business or their farm as retained earnings. 1102 01:03:12,750 --> 01:03:19,250 Savings investment account, that's 1103 01:03:19,250 --> 01:03:21,540 probably worth looking at. 1104 01:03:21,540 --> 01:03:23,010 Here's the balance sheet. 1105 01:03:23,010 --> 01:03:26,940 So remember, we had assets and liabilities and net worth. 1106 01:03:26,940 --> 01:03:31,190 This is the change over time in the balance sheet. 1107 01:03:31,190 --> 01:03:34,710 So it's like a first-time difference. 1108 01:03:34,710 --> 01:03:40,960 So changes in liabilities and changes in net worth 1109 01:03:40,960 --> 01:03:46,060 must equal to the change in all the assets, 1110 01:03:46,060 --> 01:03:48,880 especially if you include change in net worth over there. 1111 01:03:51,630 --> 01:03:55,270 These could be financial or real. 1112 01:03:55,270 --> 01:03:58,770 Well hopefully this is comfortable and familiar. 1113 01:03:58,770 --> 01:04:01,830 Just the notion of having assets and liabilities and net worth 1114 01:04:01,830 --> 01:04:04,170 and taking a time difference. 1115 01:04:04,170 --> 01:04:07,310 What is the savings investment account? 1116 01:04:07,310 --> 01:04:10,970 Well, you just basically take the change in liabilities 1117 01:04:10,970 --> 01:04:14,420 and put it on the left-hand side. 1118 01:04:14,420 --> 01:04:18,870 That leaves the change in net worth on the right-hand side, 1119 01:04:18,870 --> 01:04:21,800 and then what you do with it on the left-hand side. 1120 01:04:21,800 --> 01:04:22,580 Yes? 1121 01:04:22,580 --> 01:04:26,660 AUDIENCE: So before we were talking about household gifts 1122 01:04:26,660 --> 01:04:28,395 equity. 1123 01:04:28,395 --> 01:04:29,270 ROBERT TOWNSEND: Yep. 1124 01:04:29,270 --> 01:04:30,978 AUDIENCE: So does that mean that they get 1125 01:04:30,978 --> 01:04:32,380 counted as financial assets? 1126 01:04:36,270 --> 01:04:38,613 Where would gifts in a village enter? 1127 01:04:38,613 --> 01:04:40,155 ROBERT TOWNSEND: Contributed capital. 1128 01:04:40,155 --> 01:04:41,270 AUDIENCE: Contributed capital. 1129 01:04:41,270 --> 01:04:41,720 ROBERT TOWNSEND: Yeah. 1130 01:04:41,720 --> 01:04:43,127 That's what we called it. 1131 01:04:43,127 --> 01:04:43,544 AUDIENCE: All right. 1132 01:04:43,544 --> 01:04:43,961 Cool. 1133 01:04:43,961 --> 01:04:44,380 Thanks. 1134 01:04:44,380 --> 01:04:45,140 I'm sorry, it just occurred to-- 1135 01:04:45,140 --> 01:04:45,980 ROBERT TOWNSEND: No, no, it's fine. 1136 01:04:45,980 --> 01:04:47,070 AUDIENCE: --no idea where they're going. 1137 01:04:47,070 --> 01:04:48,237 ROBERT TOWNSEND: Yeah, yeah. 1138 01:04:48,237 --> 01:04:51,018 It's there, because if they're getting gifts and not 1139 01:04:51,018 --> 01:04:53,060 eating too much, it should increase their wealth, 1140 01:04:53,060 --> 01:04:55,640 and therefore, it should show up somewhere as either reduced 1141 01:04:55,640 --> 01:04:58,640 debt or increased assets. 1142 01:04:58,640 --> 01:05:04,850 And that phenomenon depends a lot on where you are. 1143 01:05:04,850 --> 01:05:07,210 AUDIENCE: But entered both sides, right? 1144 01:05:07,210 --> 01:05:10,762 It entered as increased cash, and then also increased-- 1145 01:05:10,762 --> 01:05:11,720 ROBERT TOWNSEND: Well-- 1146 01:05:11,720 --> 01:05:12,560 AUDIENCE: --contributed capital. 1147 01:05:12,560 --> 01:05:14,102 ROBERT TOWNSEND: The concept is here. 1148 01:05:14,102 --> 01:05:16,610 So basically say this is positive, 1149 01:05:16,610 --> 01:05:20,550 and your change in net worth is positive 1150 01:05:20,550 --> 01:05:23,760 because either retained earnings or contributed capital. 1151 01:05:23,760 --> 01:05:25,920 And then the issue is portfolio management, 1152 01:05:25,920 --> 01:05:27,900 it's what did you do with it? 1153 01:05:27,900 --> 01:05:32,260 And you could put it in cash, that's in financial assets, 1154 01:05:32,260 --> 01:05:38,580 but you could also have it in inventory as I was alluding to, 1155 01:05:38,580 --> 01:05:43,990 or have livestock assets or other fixed assets. 1156 01:05:43,990 --> 01:05:46,180 So it's worthy of study to figure out 1157 01:05:46,180 --> 01:05:48,268 what they're doing with it. 1158 01:05:48,268 --> 01:05:49,726 AUDIENCE: And sometimes the idea is 1159 01:05:49,726 --> 01:05:51,730 there's a reciprocity, and the gift that I 1160 01:05:51,730 --> 01:05:55,690 give to my buddy in the next village is 1161 01:05:55,690 --> 01:05:56,840 in some sense a residual-- 1162 01:05:56,840 --> 01:05:57,757 ROBERT TOWNSEND: Yeah. 1163 01:05:57,757 --> 01:05:58,690 AUDIENCE: So yeah. 1164 01:05:58,690 --> 01:05:58,930 ROBERT TOWNSEND: Yeah. 1165 01:05:58,930 --> 01:06:00,290 AUDIENCE: So yea, I guess that's what-- 1166 01:06:00,290 --> 01:06:01,690 ROBERT TOWNSEND: I mean, the extreme versions of that 1167 01:06:01,690 --> 01:06:04,030 would be the kids that go off to Bangkok 1168 01:06:04,030 --> 01:06:06,150 and they send money back. 1169 01:06:06,150 --> 01:06:08,110 Now can you distinguish they're just 1170 01:06:08,110 --> 01:06:09,640 caring about their parents? 1171 01:06:09,640 --> 01:06:14,500 And there's a very strong Thai tradition there. 1172 01:06:14,500 --> 01:06:18,010 But then eventually they come back and run the farm. 1173 01:06:24,590 --> 01:06:27,080 But it is-- it's a real incoming flow, 1174 01:06:27,080 --> 01:06:29,060 so we have to do something with it. 1175 01:06:29,060 --> 01:06:32,297 We could just not call it equity or something, 1176 01:06:32,297 --> 01:06:34,130 and in effect, that's what we're doing here, 1177 01:06:34,130 --> 01:06:39,510 is just keeping track of it separately as a line item. 1178 01:06:39,510 --> 01:06:40,010 OK. 1179 01:06:40,010 --> 01:06:47,300 So I guess I said this before. 1180 01:06:47,300 --> 01:06:50,480 Oh, by the way, on the lifecycle diagrams, 1181 01:06:50,480 --> 01:06:56,350 it's really dramatic that in the northeast, 1182 01:06:56,350 --> 01:06:59,890 wealth isn't dropping as these guys get older, 1183 01:06:59,890 --> 01:07:01,780 and likewise, they're not accumulating 1184 01:07:01,780 --> 01:07:05,800 a lot of financial or real assets as they're young 1185 01:07:05,800 --> 01:07:07,540 and getting older either. 1186 01:07:07,540 --> 01:07:09,970 There doesn't seem to be this life cycle, 1187 01:07:09,970 --> 01:07:12,470 and the gifts just get bigger and bigger. 1188 01:07:12,470 --> 01:07:15,910 You don't have to get older to get those gifts. 1189 01:07:15,910 --> 01:07:16,840 It's the huge-- 1190 01:07:16,840 --> 01:07:21,940 I think it's overlapping generations, essentially. 1191 01:07:21,940 --> 01:07:25,440 It's really quite different between the northeast 1192 01:07:25,440 --> 01:07:28,000 and the central area, and that's related, 1193 01:07:28,000 --> 01:07:30,585 because it's kind of showing up here. 1194 01:07:30,585 --> 01:07:32,335 So then we get to the balance of payments. 1195 01:07:39,830 --> 01:07:44,420 So basically, villages trade. 1196 01:07:44,420 --> 01:07:47,480 They produce stuff and sell it and they buy stuff 1197 01:07:47,480 --> 01:07:50,040 as inputs and by consumption. 1198 01:07:50,040 --> 01:07:54,260 So we got sort of a trade balance that we measure. 1199 01:07:54,260 --> 01:07:59,180 You could add in interest earnings from, quote, abroad, 1200 01:07:59,180 --> 01:08:01,520 but it's really mostly from the same country. 1201 01:08:01,520 --> 01:08:03,440 They're getting interest on savings accounts 1202 01:08:03,440 --> 01:08:07,410 that they held outside the village or in those gifts 1203 01:08:07,410 --> 01:08:07,910 again. 1204 01:08:11,470 --> 01:08:14,740 So you may or may not have seen this, 1205 01:08:14,740 --> 01:08:17,080 this gets really kind of confusing 1206 01:08:17,080 --> 01:08:20,140 the way the standard accounting is done. 1207 01:08:20,140 --> 01:08:26,410 Trade balance plus this other earnings on gifts and interest 1208 01:08:26,410 --> 01:08:28,870 is called the current account, and then you 1209 01:08:28,870 --> 01:08:31,990 have the current account balanced 1210 01:08:31,990 --> 01:08:35,109 with the financial count and the capital account. 1211 01:08:35,109 --> 01:08:36,970 But they didn't write current account 1212 01:08:36,970 --> 01:08:42,490 equal financial account, so this stuff has 1213 01:08:42,490 --> 01:08:48,609 to be-- if you're trading a lot, like China, 1214 01:08:48,609 --> 01:08:51,640 and you have a big sort of current account, 1215 01:08:51,640 --> 01:08:54,569 this stuff has to be negative. 1216 01:08:54,569 --> 01:08:56,660 A negative in the financial account 1217 01:08:56,660 --> 01:08:58,710 is actually, quote, a good thing in the sense 1218 01:08:58,710 --> 01:09:03,050 that you're accumulating assets. 1219 01:09:03,050 --> 01:09:06,270 But believe me, it'll throw you every time when 1220 01:09:06,270 --> 01:09:09,330 you start thinking about it. 1221 01:09:09,330 --> 01:09:12,210 And then I won't drive this for you, 1222 01:09:12,210 --> 01:09:14,700 but it turns out that if you take this sort 1223 01:09:14,700 --> 01:09:19,109 of Keynesian-looking thing, which is really just 1224 01:09:19,109 --> 01:09:23,340 an accounting statement, income less consumption less 1225 01:09:23,340 --> 01:09:27,029 investment plus transfers-- that's not taxes-- 1226 01:09:27,029 --> 01:09:32,340 has to be identically equal to the trade balance 1227 01:09:32,340 --> 01:09:35,220 plus sort of capital account balance, which 1228 01:09:35,220 --> 01:09:39,069 we keep track of separately, plus the change in inventories. 1229 01:09:39,069 --> 01:09:44,430 So largely, if they run an export surplus, 1230 01:09:44,430 --> 01:09:47,064 they're going to save it, but not quite. 1231 01:09:47,064 --> 01:09:48,689 Because they have other ways of saving, 1232 01:09:48,689 --> 01:09:51,569 you have to adjust for changes in the capital, 1233 01:09:51,569 --> 01:09:54,990 buying and selling with foreigners, so to speak, 1234 01:09:54,990 --> 01:09:56,490 and the changes in inventory. 1235 01:09:56,490 --> 01:09:59,424 AUDIENCE: So the left-hand side is a financial account 1236 01:09:59,424 --> 01:10:01,325 in this case? 1237 01:10:01,325 --> 01:10:02,700 ROBERT TOWNSEND: It's not obvious 1238 01:10:02,700 --> 01:10:05,750 how you get from this to this. 1239 01:10:05,750 --> 01:10:10,250 And I decided not to try to derive it today. 1240 01:10:10,250 --> 01:10:12,050 But it is an identity. 1241 01:10:12,050 --> 01:10:13,370 One follows from the other. 1242 01:10:17,520 --> 01:10:18,970 And here, the balance of payments 1243 01:10:18,970 --> 01:10:24,220 accounts for these villages, mostly 1244 01:10:24,220 --> 01:10:27,440 this story is they're running surpluses. 1245 01:10:27,440 --> 01:10:31,410 The trade or trade and current account is this blue 1246 01:10:31,410 --> 01:10:34,860 or blue-red stuff, and-- 1247 01:10:34,860 --> 01:10:36,720 although here you see a difference. 1248 01:10:36,720 --> 01:10:39,680 Chachoengsao's getting in trouble, 1249 01:10:39,680 --> 01:10:43,530 its balance of payments is going down in the sense 1250 01:10:43,530 --> 01:10:47,640 that it's running less and less of a surplus. 1251 01:10:47,640 --> 01:10:50,140 Whereas Lopburi is the other story. 1252 01:10:50,140 --> 01:10:51,480 It's always increasing. 1253 01:10:51,480 --> 01:10:54,330 The difference between red and blue 1254 01:10:54,330 --> 01:10:59,700 is basically the gifts that play a big role in the northeast. 1255 01:10:59,700 --> 01:11:03,180 And here's an instance of Buriram coming off 1256 01:11:03,180 --> 01:11:08,040 the financial crisis, which was 1997-98, 1257 01:11:08,040 --> 01:11:11,640 but anyway, they actually ran a balance of payments deficit. 1258 01:11:16,280 --> 01:11:20,860 So this opens up the whole vista of international economics 1259 01:11:20,860 --> 01:11:23,200 and what's going on using those kinds of ways 1260 01:11:23,200 --> 01:11:25,660 of conceptualizing the problem. 1261 01:11:29,030 --> 01:11:33,980 And just to remind you, because I promised an application 1262 01:11:33,980 --> 01:11:37,520 for each section, we've had tons of models 1263 01:11:37,520 --> 01:11:43,160 of the role of financing constraints or other obstacles 1264 01:11:43,160 --> 01:11:46,980 in growth and TFP and so on and so forth. 1265 01:11:46,980 --> 01:11:56,310 So here's just some model with arch where we do the following. 1266 01:11:56,310 --> 01:12:00,070 We take these villages to be small open economies, 1267 01:12:00,070 --> 01:12:03,010 we see a drop in the interest rate-- 1268 01:12:03,010 --> 01:12:06,470 it's actually true worldwide-- 1269 01:12:06,470 --> 01:12:10,940 and we see the number of new loans 1270 01:12:10,940 --> 01:12:15,590 increasing this has to do in part with this village fund 1271 01:12:15,590 --> 01:12:19,430 stuff that we'll talk about later the Million Baht 1272 01:12:19,430 --> 01:12:20,240 Fund in Thailand. 1273 01:12:23,050 --> 01:12:26,750 This is the collateral constraint-- 1274 01:12:26,750 --> 01:12:29,500 this is a model thing. 1275 01:12:29,500 --> 01:12:34,110 So we're going to act as if that innovation associated with more 1276 01:12:34,110 --> 01:12:37,590 loans was like a weakening of the borrowing constraint 1277 01:12:37,590 --> 01:12:46,270 and feed it into a model, and it's 1278 01:12:46,270 --> 01:12:51,680 a trade model with financial underpinnings, 1279 01:12:51,680 --> 01:12:55,940 and it predicts things like the relative price of agriculture 1280 01:12:55,940 --> 01:12:59,340 relative to manufactured goods. 1281 01:12:59,340 --> 01:13:03,240 In the model and in the data, we're kind of close. 1282 01:13:03,240 --> 01:13:09,120 And a real goal was to try to get the wages right, 1283 01:13:09,120 --> 01:13:13,785 and here is the actual and model-driven real wages. 1284 01:13:16,540 --> 01:13:17,870 Why is this a struggle? 1285 01:13:17,870 --> 01:13:21,030 If you think about Heckscher-Ohlin, 1286 01:13:21,030 --> 01:13:24,600 that has to do with the area around Bangkok 1287 01:13:24,600 --> 01:13:29,070 being very capital-intensive and not having so much labor, 1288 01:13:29,070 --> 01:13:33,120 so interest rates are lower and wages are higher; 1289 01:13:33,120 --> 01:13:36,290 in the northeast, it's the other way around because capital 1290 01:13:36,290 --> 01:13:38,500 and wealth is relatively low. 1291 01:13:38,500 --> 01:13:40,110 So you think that over time you're 1292 01:13:40,110 --> 01:13:42,750 going to get convergence, which means 1293 01:13:42,750 --> 01:13:46,710 wages ought to be dropping in the central area, 1294 01:13:46,710 --> 01:13:49,120 and they're not. 1295 01:13:49,120 --> 01:13:53,070 So then you introduce this financial constraint, 1296 01:13:53,070 --> 01:13:55,350 and you get the dynamics that have 1297 01:13:55,350 --> 01:13:57,550 to do with choosing occupations and so on. 1298 01:13:57,550 --> 01:14:01,170 So that hopefully you remember enough from the other papers 1299 01:14:01,170 --> 01:14:06,030 that we covered to kind of imagine how one would fill this 1300 01:14:06,030 --> 01:14:09,570 out, and we're actually at these calibrated values-- 1301 01:14:09,570 --> 01:14:12,720 we're actually matching quite well 1302 01:14:12,720 --> 01:14:20,050 all the income shares for wages, manufacturing, and agriculture. 1303 01:14:20,050 --> 01:14:22,230 Yep? 1304 01:14:22,230 --> 01:14:25,700 AUDIENCE: I might remember wrong, but just-- 1305 01:14:25,700 --> 01:14:29,520 yeah, it's very likely, but in your paper 1306 01:14:29,520 --> 01:14:32,157 with Kaboski on the Million-- 1307 01:14:32,157 --> 01:14:33,490 ROBERT TOWNSEND: Baht Fund, yes. 1308 01:14:36,050 --> 01:14:38,180 AUDIENCE: Is it the interest rate 1309 01:14:38,180 --> 01:14:44,510 wasn't going to be with the intervention, was it? 1310 01:14:44,510 --> 01:14:47,160 Now you just said that the interest rate drop has 1311 01:14:47,160 --> 01:14:49,410 to do with the Million Baht-- 1312 01:14:49,410 --> 01:14:51,460 ROBERT TOWNSEND: Remember, what we're doing 1313 01:14:51,460 --> 01:14:53,760 is kind of a variation in the cross-section 1314 01:14:53,760 --> 01:14:57,610 as a function of the percentage of households in the village. 1315 01:14:57,610 --> 01:15:02,510 So the per-capita treatment is we're 1316 01:15:02,510 --> 01:15:05,310 seeing whether that has any impact on the interest rate. 1317 01:15:05,310 --> 01:15:08,230 What I showed you was the time variation in the interest rate, 1318 01:15:08,230 --> 01:15:09,660 so it's a very different object. 1319 01:15:09,660 --> 01:15:10,310 AUDIENCE: OK. 1320 01:15:10,310 --> 01:15:11,227 ROBERT TOWNSEND: Yeah. 1321 01:15:11,227 --> 01:15:13,830 So that's kind of like differenced out, basically. 1322 01:15:13,830 --> 01:15:18,095 It's the relative difference from the trend 1323 01:15:18,095 --> 01:15:19,470 and whether the Million Baht Fund 1324 01:15:19,470 --> 01:15:20,637 had something to do with it. 1325 01:15:23,260 --> 01:15:23,760 OK. 1326 01:15:23,760 --> 01:15:27,240 The last thing is flow of funds. 1327 01:15:27,240 --> 01:15:30,270 These are the flow of funds accounts for Thailand, 1328 01:15:30,270 --> 01:15:31,080 basically. 1329 01:15:34,490 --> 01:15:37,180 A quick introduction to flow of funds, 1330 01:15:37,180 --> 01:15:39,240 you've got non-financial corporations, 1331 01:15:39,240 --> 01:15:43,650 financial corporations, government, households, 1332 01:15:43,650 --> 01:15:47,620 and not-for-profit corporations, and the rest of the world. 1333 01:15:47,620 --> 01:15:49,320 Those are the sectors. 1334 01:15:49,320 --> 01:15:53,640 And then you have acquisition of assets, 1335 01:15:53,640 --> 01:15:57,870 and they're actually in detailed financial accounts. 1336 01:15:57,870 --> 01:16:00,370 When the flow of funds accounts-- when they exist, 1337 01:16:00,370 --> 01:16:03,330 you've got money and gold and currency, 1338 01:16:03,330 --> 01:16:06,130 securities, loans, and so on. 1339 01:16:06,130 --> 01:16:10,500 So acquiring a loan means basically you're a lender. 1340 01:16:10,500 --> 01:16:13,800 On the other hand, you've got sort of liabilities 1341 01:16:13,800 --> 01:16:16,890 down here, and so that you can have a loan which represents 1342 01:16:16,890 --> 01:16:19,140 an increase in borrowing. 1343 01:16:19,140 --> 01:16:22,560 It takes a lot of concentration to constantly remember 1344 01:16:22,560 --> 01:16:25,500 uses means putting money-- 1345 01:16:25,500 --> 01:16:27,000 so the idea is you run-- 1346 01:16:29,530 --> 01:16:34,630 you have positive savings, where do you put your money? 1347 01:16:34,630 --> 01:16:36,640 And you could put it here or you could reduce 1348 01:16:36,640 --> 01:16:39,700 your deficits, or if you-- 1349 01:16:39,700 --> 01:16:40,720 reduce your liabilities. 1350 01:16:40,720 --> 01:16:42,362 If you run it the other way and you 1351 01:16:42,362 --> 01:16:43,820 have negative savings or something, 1352 01:16:43,820 --> 01:16:45,820 and then you've got to increase your liabilities 1353 01:16:45,820 --> 01:16:49,880 or run down and sell off some assets that you own. 1354 01:16:49,880 --> 01:16:52,980 These are the traditional labor labels 1355 01:16:52,980 --> 01:16:55,075 in the flow of funds by sector. 1356 01:16:58,150 --> 01:16:59,980 Is there a relationship between flow 1357 01:16:59,980 --> 01:17:02,080 of funds and the national income accounts? 1358 01:17:02,080 --> 01:17:03,250 Yes. 1359 01:17:03,250 --> 01:17:06,460 Actually, in principle, they should all 1360 01:17:06,460 --> 01:17:09,280 be consistent with one another. 1361 01:17:09,280 --> 01:17:11,740 But they're often not. 1362 01:17:11,740 --> 01:17:15,010 The thing that is most consistent is flow of funds 1363 01:17:15,010 --> 01:17:18,010 into and out of the financial institutions 1364 01:17:18,010 --> 01:17:21,880 because commercial banks and other financial corporations 1365 01:17:21,880 --> 01:17:24,370 are required to report to regulators, 1366 01:17:24,370 --> 01:17:26,990 and the central bank keeps track of things. 1367 01:17:26,990 --> 01:17:31,480 So we see most accurately deposits coming in, 1368 01:17:31,480 --> 01:17:34,720 loans going out for financial corporations. 1369 01:17:34,720 --> 01:17:38,230 We often see little or anything of the transactions 1370 01:17:38,230 --> 01:17:41,170 between the other sectors. 1371 01:17:41,170 --> 01:17:42,970 There are national income and product 1372 01:17:42,970 --> 01:17:48,880 account for those sectors, and we see, therefore, savings 1373 01:17:48,880 --> 01:17:52,660 for those, but those savings numbers 1374 01:17:52,660 --> 01:17:56,470 are often radically different from the savings 1375 01:17:56,470 --> 01:18:00,640 we would impute from just seeing transactions 1376 01:18:00,640 --> 01:18:03,190 with the measured formal financial sector. 1377 01:18:03,190 --> 01:18:05,620 Another way to say this, if you read Deaton 1378 01:18:05,620 --> 01:18:12,100 and so on, the savings you see coming from household surveys 1379 01:18:12,100 --> 01:18:14,860 gives you very, very different numbers than the savings 1380 01:18:14,860 --> 01:18:18,310 you'll see at the level of the national income accounts, 1381 01:18:18,310 --> 01:18:21,220 and that's because the measurement is missing, 1382 01:18:21,220 --> 01:18:26,030 so households get treated as the residual in the national income 1383 01:18:26,030 --> 01:18:26,530 accounts. 1384 01:18:30,050 --> 01:18:35,990 But flow of funds data do exist, and to some extent, 1385 01:18:35,990 --> 01:18:40,820 they can be created, and Thailand is, for example-- 1386 01:18:40,820 --> 01:18:46,310 and Mexico-- creating improved financial flow of funds 1387 01:18:46,310 --> 01:18:48,080 accounts. 1388 01:18:48,080 --> 01:18:50,210 I'd like to think we had something to do with that. 1389 01:18:54,170 --> 01:18:55,880 We can also do it at the village level. 1390 01:18:55,880 --> 01:19:01,160 I've shown you a lot, but let me just jump here. 1391 01:19:04,700 --> 01:19:06,860 At the national aggregate level, these 1392 01:19:06,860 --> 01:19:10,220 are the traditional sectors, and here's a diamond, 1393 01:19:10,220 --> 01:19:15,890 and basically you can see from the standpoint of banks, 1394 01:19:15,890 --> 01:19:19,990 households are interior-- basically 1395 01:19:19,990 --> 01:19:22,010 households are investing in banks, 1396 01:19:22,010 --> 01:19:24,400 but that's a liability for the banking sector. 1397 01:19:24,400 --> 01:19:29,300 Savings accounts are to be paid back. 1398 01:19:29,300 --> 01:19:32,620 On the other hand, in this period between '08 and-- 1399 01:19:32,620 --> 01:19:37,090 '04 and '08, you know the banking sector was investing 1400 01:19:37,090 --> 01:19:39,610 in the rest of the world and that had to do with Thailand 1401 01:19:39,610 --> 01:19:41,965 running a balance of payments surplus. 1402 01:19:44,660 --> 01:19:47,160 But this is at the village level. 1403 01:19:47,160 --> 01:19:51,200 And here, you can distinguish financial corporations, 1404 01:19:51,200 --> 01:19:54,680 transactions with businesses outside the village, 1405 01:19:54,680 --> 01:19:57,230 transactions of the village funds we just talked about, 1406 01:19:57,230 --> 01:20:01,310 and you can see them using currency, running surpluses 1407 01:20:01,310 --> 01:20:04,460 or deficits with these other entities in terms 1408 01:20:04,460 --> 01:20:06,020 of the objects. 1409 01:20:06,020 --> 01:20:10,010 So the point here is that it's a common way of measuring 1410 01:20:10,010 --> 01:20:14,120 and it doesn't just have to be applied as it is conventionally 1411 01:20:14,120 --> 01:20:15,650 at the national level. 1412 01:20:15,650 --> 01:20:19,430 Flow of funds can zoom in and zoom out by region 1413 01:20:19,430 --> 01:20:23,040 and tell you which object's moving around over time. 1414 01:20:23,040 --> 01:20:32,240 And in fact, you can read it in a little more leisure 1415 01:20:32,240 --> 01:20:37,460 style on your own, there's papers of Guerrieri and Guido 1416 01:20:37,460 --> 01:20:42,470 Lorenzoni and Monika Piazzesi and Martin Schneider, 1417 01:20:42,470 --> 01:20:46,160 and these are, granted, about the US, 1418 01:20:46,160 --> 01:20:49,910 but it's basically looking at the household sector 1419 01:20:49,910 --> 01:20:52,100 and going to the flow of funds data in the US 1420 01:20:52,100 --> 01:20:58,550 to measure changes in savings and borrowing. 1421 01:20:58,550 --> 01:21:01,400 And this same language that they use 1422 01:21:01,400 --> 01:21:03,890 to try to understand what happens 1423 01:21:03,890 --> 01:21:07,310 in a financial crisis when all of a sudden you 1424 01:21:07,310 --> 01:21:11,690 can't borrow as much because the banks are tight, 1425 01:21:11,690 --> 01:21:15,300 or in Monika's case, what happens when there are many, 1426 01:21:15,300 --> 01:21:19,080 many more young people entering and they have 1427 01:21:19,080 --> 01:21:21,860 certain expectations about inflation, 1428 01:21:21,860 --> 01:21:25,080 and each one of these pairs of authors 1429 01:21:25,080 --> 01:21:29,460 is doing this kind of experiment in the context of a model. 1430 01:21:29,460 --> 01:21:32,430 So these very same models that rely 1431 01:21:32,430 --> 01:21:35,370 on a sort of macro-aggregate looking, though, 1432 01:21:35,370 --> 01:21:40,500 at sectors in the US also apply to developing countries. 1433 01:21:40,500 --> 01:21:44,250 In fact Guido's model is eerily similar, although none of us 1434 01:21:44,250 --> 01:21:47,610 recognized it at the time, to the model that Joe and I used 1435 01:21:47,610 --> 01:21:52,730 to analyze the village fund in in Thailand.