Every problem in the chapter beside the book’s answer, a chapter at a time as you scroll.

Chapter 18: Public Economy

7 problems · 0 figures

18-1 §18.1 source ↗

Based on the theory of rational ignorance, what should we expect to happen to voter turnout as the internet makes information easier to obtain?

Answer

All other things being equal, voter turnout should increase as the cost of casting an informed vote decreases.

18-2 §18.1 source ↗

What is the cost of voting in an election?

Answer

The cost in time of voting, transportation costs to and from the polling place, and any additional time and effort spent becoming informed about the candidates.

18-3 §18.2 source ↗

What is the main factor preventing a large community from influencing policy in the same way as a special interest group?

Answer

The costs of organization and the small benefit to the individual.

18-4 §18.2 source ↗

Why might legislators vote to impose a tariff on Egyptian cotton, when consumers in their districts would benefit from its availability?

Answer

Domestic cotton producers would lobby heavily to protect themselves from the competition, whereas the consumers have little incentive to organize.

18-5 §18.3 source ↗

True or false: Majority rule can fail to produce a single preferred outcome when there are more than two choices.

Answer

True. This is exactly what occurs in a voting cycle. That is, the majority can prefer policy A to policy B, policy B to policy C, but also prefer policy C to policy A. Then, the majority will never reach a conclusive outcome.

18-6 §18.3 source ↗

Anastasia, Emma, and Greta are deciding what to do on a weekend getaway. They each suggest a first, second, and third choice and then vote on the options. Table 18.2 shows their first, second, and third choice preferences . Explain why they will have a hard time reaching a decision. Does the group prefer mountain biking to canoeing? What about canoeing compared to the beach? What about the beach compared to the original choice of mountain biking?
Table 18.2 in the book ↗
Anastasia Emma Greta
First Choice Beach Mountain biking Canoeing
Second Choice Mountain biking Canoeing Beach
Third Choice Canoeing Beach Mountain biking

Answer

The problem is an example of a voting cycle. The group will vote for mountain biking over canoeing by 2–1. It will vote for canoeing over the beach by 2–1. If mountain biking is preferred to canoeing and canoeing is preferred to the beach, it might seem that it must be true that mountain biking is the favorite. But in a vote of the beach versus mountain biking, the beach wins by a 2–1 vote. When a voting cycle occurs, choosing a single favorite that is always preferred by a majority becomes impossible.

18-7 §18.3 source ↗

Suppose there is an election for Soft Drink Commissioner. The field consists of one candidate from the Pepsi party and four from the Coca-Cola party. This would seem to indicate a strong preference for Coca-Cola among the voting population, but the Pepsi candidate ends up winning in a landslide. Why does this happen?

Answer

The four Coca-Cola candidates compete with each other for Coca-Cola voters, whereas everyone who prefers Pepsi had only one candidate to vote for. Thus the will of the majority is not satisfied.

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Problems and answers are adapted from Principles of Microeconomics 3e by Steven A. Greenlaw, David Shapiro and Daniel MacDonald, OpenStax, and are used under the CC BY-NC-SA 4.0 licence. Access for free at https://openstax.org/books/principles-microeconomics-3e/pages/1-introduction. Illustrations: Copyright Rice University, OpenStax, under CC BY-NC-SA 4.0 license. This adaptation is released under the same licence, is non-commercial, and is neither affiliated with nor endorsed by OpenStax or Rice University.