Dominance of the Income Effect in US Work-Leisure Choices (1900-2020)

An individual's choices between daily free time and daily consumption are shown in a model. Initially, the individual chooses Point A (16 hours of free time, $80 of consumption). After their wage rate increases, their new choice is Point B (18 hours of free time, $150 of consumption). Point C (20 hours of free time, $120 of consumption) is a hypothetical point on the new indifference curve that represents the choice they would have made with the original wage rate but with just enough income to reach the new level of satisfaction. Based on this information, what is the change in daily free time that can be attributed purely to the income effect?

Isolating the Income Effect

Analyzing a Change in Work-Leisure Choice

When analyzing the impact of a wage increase on an individual's choice between consumption and free time, the income effect is defined as the change in the amount of free time chosen that results from the change in its opportunity cost, while holding the individual's overall satisfaction constant.

An economic model analyzes a worker's response to a wage increase. Initially, the worker chooses 17 hours of free time per day. After the wage increase, they choose 19 hours. To understand this change, a hypothetical scenario is considered where the worker's purchasing power increases to the new level, but the opportunity cost of free time is kept at the original, lower rate. In this hypothetical scenario, the worker would choose 20 hours of free time. The change from 17 to 20 hours of free time is known as the _________.

An economic model shows an individual's response to a wage increase. Initially, at Point X, the individual chooses 16 hours of free time. After the wage increase, their final choice is Point Z, with 17 hours of free time. A hypothetical Point Y is constructed on the new indifference curve, representing the choice of 19 hours of free time that would be made at the original wage rate but with the new level of purchasing power. Match each economic effect to the change in free time it represents.

Deconstructing the Income Effect on Leisure Choice

An economist wants to isolate the income effect resulting from a wage increase on an individual's choice of free time. Arrange the following analytical steps into the correct logical sequence.

In an economic model analyzing an individual's response to a wage increase, economists construct a hypothetical choice point. This point lies on the new, higher indifference curve (representing the satisfaction level after the wage increase) but is located where the slope of the indifference curve is equal to the slope of the original, pre-increase budget constraint. What is the primary analytical purpose of constructing this specific hypothetical point?

When analyzing an individual's choice between leisure and consumption following a wage increase, the income effect is correctly isolated by identifying the optimal bundle on the original indifference curve that is tangent to a hypothetical budget line reflecting the new wage rate.