This figure shows the payoffs involved when Sarah and Joe work on a school project together for a single grade. They both will enjoy a higher grade when more effort is put into the project, but they also get pleasure from goofing off and not working on the project. The payoffs can be thought of as the utility each would get from the effort they individually put forth and the grade they jointly receive.Assume that Joe and Sarah, from the figure shown, are also dating, in addition to working together on the joint school project. Further assume that Joe is madly in love with Sarah, who is an excellent student. Sarah tells Joe that she will break up with
him if he does not put forth high effort on this project. This future punishment by Sarah is an example of:
A. an ultimatum.
B. an effort optimization strategy.
C. a bargaining strategy.
D. a commitment strategy.
Answer: D
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An indifference curve shows
A) the relationship between prices and a household's budget. B) all possible prices and preferences for a good. C) combinations of goods among which a household is indifferent. D) budget lines among which a consumer is indifferent.
Refer to Figure 4-6. At the equilibrium price of P1, consumers are willing to buy Q1 pounds of granola. Is this an economically efficient quantity?
A) No, the marginal cost of the last unit (Q1 ) exceeds the marginal benefit of the last unit. B) No, the marginal benefit of the last unit (Q1 ) exceeds the marginal cost of that last unit. C) Yes, because P1 is the price where marginal benefit equals marginal cost. D) Yes, because marginal cost is zero at the price of P1.