In the long run, perfectly competitive firms make zero economic profit. This result is due mainly to which of the following assumptions?
A) few buyers and sellers
B) unrestricted entry and exit
C) firms must act as price takers
D) demand for the firm's output is perfectly elastic
B
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Refer to the game between James and Theodore depicted in Figure 12.1. Which of the following is true?
A. If James chooses Up, Theodore's best response is to choose Right.
B. If James chooses Down, Theodore's best response is to choose Right.
C. If Theodore chooses Left, James's best response is to choose Up.
D. If Theodore chooses Right, James's best response is to choose Up.
Government expenditures for Social Security and unemployment benefits are examples of
a. government consumption. b. government investment. c. government purchases. d. transfer payments.
The proper economic method of selecting a sentence length would be to
A. compare the average cost of crime being perpetrated by the average offender if released a year earlier with the average incarceration costs for that shorter sentence. B. compare the total cost of crime being perpetrated by the offender if released a year earlier with the incarceration costs for that shorter sentence. C. poll pro bono defense attorneys and follow their recommendation. D. compare the reduction in the total cost of (marginal cost) crime being perpetrated by the offender if released a year earlier with the reduction in incarceration costs (marginal benefit) for that shorter sentence.
Refer to the accompanying table below. According to the Cost-Benefit Principle, how many units of this activity should be carried out?Units of ActivityTotal CostTotal Benefit0$0$01$2$122$6$223$12$304$20$365$30$406$42$427$56$43
A. 4 B. 2 C. 3 D. 5