Consumer Choice and Utility Theory

From the study guide

Course Outline

  1. Consumer Utility Maximization
  2. Marginal Utility and Demand
  3. Utility Measurement and Indifference
  4. Budget Constraints and Optimization
  5. Law of Demand and Elasticity
  6. Price Elasticity of Demand
  7. Types of Goods and Income Effects
  8. Substitutes and Complements
  9. Rational Decision-Making Assumptions
  10. Expected Utility Theory

1. Consumer Utility Maximization

Key Concepts & Definitions

  • Utility Function (von Neumann & Morgenstern, 1944): A mathematical representation of a consumer’s preferences, assigning a real number to each option such that higher numbers indicate more preferred options, enabling analysis of choice behavior.

  • Completeness and Transitivity (Arrow, 1951): Assumptions that preferences are complete (for any two options, the consumer can state a preference or indifference) and transitive (if A is preferred to B, and B to C, then A is preferred to C), ensuring preferences can be represented by a utility function.

  • Expected Utility Theory (Bernoulli, 1738): A model where consumers maximize the expected utility of uncertain outcomes, capturing the idea that utility, not monetary value, guides decision-making under risk.

  • Willingness-to-Pay (WTP): The maximum amount a consumer is willing to pay for an additional unit of a good, interpreted as the marginal utility of that good in quasilinear utility models.

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Practice quiz preview

1. What is consumer utility maximization?

2. Who formalized the utility function in the context of expected utility theory in 1944?

3. What is the primary role of utility measurement and indifference in consumer decision-making?

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Flashcard preview

Utility Function — definition?

Mathematical representation of preferences, assigning real numbers.

Completeness & Transitivity — role?

Ensure preferences can be represented by a utility function.

Expected Utility — purpose?

Evaluate risky prospects using probability-weighted utility.

Willingness-to-Pay — meaning?

Maximum amount a consumer is willing to pay for an additional unit.

Marginal Utility — what?

Additional utility from consuming one more unit.

Quasilinear Utility — form?

U(q, t) = V(q) + t, separating good and money.

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Frequently asked questions

What does the Consumer Choice and Utility Theory study guide cover?

It covers the core concepts of Consumer Choice and Utility Theory, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.

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How many questions are in the Consumer Choice and Utility Theory quiz?

The practice quiz has 10 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.

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