Life would be easy if it was just a question of deciding what we would like most. The answer would probably be more of everything! Of course, economic decisions are not that simple, and the reason is that we are constrained in what we can choose: constrained by the amount of income, the amount of time, or any one of a number of factors. In this lecture we will analyze how consumers make choices when they face a budget constraint.
Our monetary income constrains our consumption. Image courtesy of allison.johnston on Flickr.
Keywords: Budget constraints; marginal rate of transformation; opportunity cost; constrained utility maximization; corner solutions.
Before watching the lecture video, read the course textbook for an introduction to the material covered in this session:
- [R&T] Chapter 7, "The Analysis of Consumer Choice." Sections 7.3.
- [Perloff] Chapter 4, "Consumer Choice." (optional)
View Full Video
- Lecture 5: Budget Constraints (00:46:14)
- Transcript - PDF English-US
- Caption - SRT (English-US)
Lecture 5: Budget Constraints
View by Chapter
- Budget Constraints and the Marginal Rate of Transformation (0:10:12)
- Shocking the Budget Constraint (0:04:47)
- Constrained Utility Maximization: Graphical Analysis (0:06:44)
- Constrained Utility Maximization: Mathematical Derivation (0:14:16)
- Corner Solutions (0:03:03)
- Applying Constrained Utility Maximization (0:07:06)
Budget Constraints and the Marginal Rate of Transformation
Shocking the Budget Constraint
Constrained Utility Maximization: Graphical Analysis
Constrained Utility Maximization: Mathematical Derivation
Applying Constrained Utility Maximization
This concept quiz covers key vocabulary terms and also tests your intuitive understanding of the material covered in this session. Complete this quiz before moving on to the next session to make sure you understand the concepts required to solve the mathematical and graphical problems that are the basis of this course.
These optional resources are provided for students that wish to explore this topic more fully.
Textbook Study Materials
See the [Perloff] chapter for the topics covered, as well as quizzes, applications, and other related resources.