Point A is on the same indifference curve as Point B. What can be said about the points?

An indifference curve represents a series of combinations of goods (or bundles) that provide a consumer with the exact same level of satisfaction or utility. By definition, a consumer is indifferent between any two points on the same curve because each point yields an identical level of happiness. The curve itself does not provide information about the affordability or cost of the bundles; that is determined by the consumer's budget constraint. Therefore, if Point A and Point B are on the same indifference curve, the consumer's preference for both bundles is equal.

A. An indifference curve shows preference, not cost. The cost of the bundles is determined by the budget line.

C. If the consumer preferred bundle A, it would have to be on a higher indifference curve than bundle B.

D. An indifference curve does not contain information about the price or cost of the goods.

1. Mankiw, N. G. (2021). Principles of Microeconomics (9th ed.). Cengage Learning.

Chapter 21, "The Theory of Consumer Choice," defines an indifference curve as "a curve that shows consumption bundles that give the consumer the same level of satisfaction" (p. 446).

2. Varian, H. R. (2014). Intermediate Microeconomics: A Modern Approach (9th ed.). W. W. Norton & Company.

Chapter 3, "Preferences," Section 3.1, "Consumer Preferences," explains that all bundles on a single indifference curve are ranked as equally preferred by the consumer.

3. MIT OpenCourseWare. (2018). 14.01 Principles of Microeconomics, Fall 2018. Massachusetts Institute of Technology.

Lecture 6, "Consumer Theory," explicitly states that all points along an indifference curve give the consumer the same level of utility.