chap7中级宏观经济学答案华中科技大学

1 Microeconomics, 4e (Perloff) Chapter 7 Costs 7.1 Measu ring Costs 1) Economic costs of an input include A) only implicit costs. B) only explicit costs. C) both implicit and explicit costs. D) whatever management wishes to report to the shareholders. Answer: C Topic: Measuring Costs 2) The cost of waiting two months for health care to address a debilitating problem in Canada is most accurately described as A) an explicit cost. B) an accounting cost. C) no real cost. D) an opportunity cost. Answer: D Topic: Measuring Costs 3) Sarah earns $40,000 per year working for a large corporation. She is thinking of quitting this job to work full time in her own business. She will invest her savings of $50,000 (which currently has an annual 10% rate of return) into the business. Her annual opportunity cost of this new business is A) $0. B) $40,000. C) $45,000. D) $90,000. Answer: C Topic: Measuring Costs 4) The Nifty Gum Co. has purchased a large parcel of land for $1 million. The company recently discovered that the land is contaminated and is worthless to all possible buyers. The opportunity cost of the land is A) $0. B) $1 million. C) some amount greater than $0 but less than $1 million. D) equal to the cost of the factory that was planned to be built there. Answer: A Topic: Measuring Costs 5) Johnny has worked as a CPA for five years and wants to open his own public accounting practice. The cost of his college degree in accounting represents A) the opportunity cost of this endeavor. B) a sunk cost. C) an expense. D) a variable cost. Answer: B Topic: Measuring Costs 2 6) Economists proclaim that competitive firms make zero economic profit in the long run. This shows how A) det...