Calculating the Substitution Effect from the Overall and Income Effects
The substitution effect can be calculated by subtracting the income effect from the overall effect. This calculation is derived directly from the principle that the overall effect is the sum of its two components. The formula is:
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Introduction to Microeconomics Course
The Economy 2.0 Microeconomics @ CORE Econ
Ch.3 Doing the best you can: Scarcity, wellbeing, and working hours - The Economy 2.0 Microeconomics @ CORE Econ
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Calculating the Substitution Effect from the Overall and Income Effects
Dominance of the Income Effect in US Work-Leisure Choices (1900-2020)
Suppose the price of public transportation fares decreases. As a result, a commuter increases their number of weekly trips by 10. An analysis of this behavior indicates that 3 of these additional trips are due to the commuter's increased purchasing power. Based on this information, what is the change in weekly trips resulting purely from public transportation becoming cheaper relative to other forms of travel?
Decomposition of a Price Change Effect
Decomposing the Effect of a Wage Change
If a wage increase leads to a person working 2 fewer hours per week, and the income effect of this wage change is a desire to work 5 fewer hours per week, then the substitution effect must be a desire to work 3 more hours per week.
An individual's hourly wage increases. This change creates two simultaneous effects on their choice between work and leisure: an 'opportunity cost effect' (leisure is now more expensive, encouraging more work) and a 'wealth effect' (higher income allows for more leisure, encouraging less work). Match each scenario describing the relative strength of these two effects to the logical outcome for the individual's work hours.
Comparing Price Effects on Different Goods
A decrease in the price of coffee causes a consumer to buy 8 more cups per month in total. If the substitution effect alone would cause them to buy 12 more cups, then the income effect must account for a change of ____ cups per month. (Enter a negative number for a decrease).
Analyzing the Impact of a Congestion Charge
After a city-wide minimum wage increase, economists observe that the average number of hours worked by affected employees has slightly decreased. Which statement best analyzes this situation using the principles of how individuals choose between work and leisure?
Dominance of the Substitution Effect in the Scenario of Figure 3.13
An economist wants to understand why a consumer buys more of a good when its price falls. To do this, they break down the consumer's total change in behavior into two parts: one part due to the good becoming cheaper relative to other goods, and another part due to the consumer's increased overall purchasing power. Arrange the following conceptual steps in the logical order an economist would follow to perform this analysis.
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Analyzing Consumer Response to a Price Change
The price of coffee falls, leading a consumer to increase their total monthly purchase of coffee by 10 cups. An analysis of this change reveals that the income effect accounts for an increase of 3 cups per month. Based on this information, what is the substitution effect?
The price of a particular brand of canned soup, which is a type of good that people buy more of when their real income falls, increases. A consumer observes that their total monthly consumption of this soup decreases by 5 cans. This total change is composed of two distinct parts: one change resulting from the consumer's reduced purchasing power, and another change resulting from the soup now being relatively more expensive than alternatives. If the change in consumption due to the consumer's reduced purchasing power is an increase of 2 cans per month, what is the change in consumption caused purely by the soup becoming relatively more expensive?
When the price of streaming movie rentals decreased, a consumer's monthly rentals increased by a total of 6 movies. An analysis determined that the increase in the consumer's real purchasing power accounted for an increase of 2 of these movies. The remaining increase, which is due to movies becoming cheaper relative to other entertainment options, is therefore ____ movies.
Disaggregating a Consumer's Response to a Price Change
Suppose the price of concert tickets increases. As a result, a consumer buys 8 fewer tickets per year in total. The decrease in the consumer's real purchasing power, considered on its own, accounts for a reduction of 3 tickets purchased. Based on this information, the statement 'The change in consumption due solely to tickets becoming more expensive relative to other goods is a decrease of 11 tickets' is true.
Analyzing Consumer Behavior in Response to a Soda Tax
For each scenario describing a consumer's response to a price change, calculate the change in consumption that is due only to the product becoming relatively more or less expensive, and match the scenario to its correct calculated value.
Evaluating a Policy's Effectiveness Using Consumer Theory
The price of instant noodles, a good whose consumption decreases as purchasing power rises, falls. A student observes that their total monthly consumption of instant noodles decreases by 5 packs. This change can be broken down into two components. The component resulting from instant noodles becoming cheaper relative to other foods causes a 7-pack increase in consumption. What is the component of the change in consumption that is attributable to the increase in the student's real purchasing power?