Related to the Economics in Practice on p. 10: Based on a study of the effects of roommates on college grades discussed in the Economics in Practice, which of the following is true?

A. The effects of roommates on fraternity membership are strong.
B. The effects of roommates on effort in school are strong.
C. The effects of roommates on grade point average are strong.
D. all of the above


Answer: D

Economics

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A farm is able to produce 5,000 bushels of peaches per season on 100 acres. Assume it adds one more acre and is able to produce 6,000 bushels per season. The marginal product of the additional acre of land for this farm is:

a. 6,000 bushels per acre per year. b. 5,000 bushels per acre per year. c. 1,000 bushels per acre per year. d. 11,000 bushels per acre per year.

Economics

An unexpected sharp reduction in inflation will most likely result in

a. the rapid growth of output and employment. b. a reduction in the actual rate of unemployment. c. a reduction in the natural rate of unemployment. d. a temporary increase in unemployment and a decline in real output.

Economics

Suppose the marginal propensity to consume is 0.8. According to the model in the text, how much would equilibrium output go up if the government increased spending by $500 million (assuming all other factors are held constant)?

Select one: a. $400 million b. $625 million c. $900 million d. $2,500 million

Economics

Assume that an insurance company sets a single price for insurance equal to the total medical bills paid by the insurance company divided by the number of its customers. If it pays medical bills of $5,000 for half of its customers and $9,000 for the other half of its customers, the price of insurance will be:

A. $5,000. B. $6,000. C. $7,000. D. $9,000.

Economics