《微观经济学》(双语)试卷B及答案

1、6/6 微观经济学 （双语） 试卷 B 本试卷适用于试卷所需时间120分钟。闭卷考试，总分100分。考试日期： 题号一二三四五总分分数评卷人一、单项选择题：（共20小题，每题1分，共20分）1. A normal good:A. must have an upward-sloping demand curve. B. must have a downward-sloping demand curve. C. could possibly have an upward-sloping demand curve. D. will have a horizontal demand curve.2.

2、A Giffen good:A. has an upward-sloping demand curve. B. has a downward-sloping demand curve.C. has a horizontal demand curve. D. has a vertical demand curve.3. The consumer optimum occurs at:A. any point of intersection between the budget line and an indifference curve. B. a point of tangency betwee

3、n the budget line and an indifference curve. C. the point where the slope of the indifference curve equals the ratio of the quantities. D. a point where the budget line cuts the curve from below.4. The slope of the budget constraint line is equal to:A. the ratio of marginal utilities. B. the ratio o

4、f money income to the price of the good on the horizontal axis. C. the ratio of money income to the price of the good on the vertical axis. D. the relative price of the two goodsthe price of one good compared with the price of the other.5.Assume the demand curve for compact discs slopes downwards, a

5、nd the supply curve slopes upwards. If the price of CD players decreases, then: A. the equilibrium price of compact discs will fall B. the equilibrium price of compact discs will rise C. the equilibrium price of compact discs will stay the same D. None of the above are correct 6.If a 5% increase in

6、income leads to a 12% increase in the quantity demanded of mobile phones, ceteris paribus, the value of the income elasticity of demand for mobile phones is: A. 2.4 and mobile phones are a normal good B. 0.42 and mobile phones are a normal good C. 2.4 and mobile phones are an inferior good D. 0.42 a

7、nd mobile phones are an inferior good7. Demand for a good is likely to be more elastic: A. the smaller the fraction of consumer income absorbed by the good B. in the short run than in the long run C. the more broadly defined the good D. the greater the number of available substitutes for the good8.

8、The rate at which a firm can substitute one factor for another while still producing the same level of output is known as the: A. degree of returns to scale B. marginal rate of substitution C. marginal rate of technical substitution D. marginal physical product9. The marginal output rule states that

9、 if a firm does not shut down, then it should produce output at a level where: A. average revenue equals average cost B. marginal revenue equals marginal cost C. marginal revenue equals average cost D. marginal cost equals average revenue10. Suppose that all the firms in a competitive industry have

10、access to the same technology and that input prices are not affected by the size of the industry. If the minimum value of the long-run average cost curve is 5, then entry of new firms will occur until the market price: A. equals 6 B. equals 7 C. equals 5 or less D. exceeds 511. For a price-taking fi

11、rm in both the input and output markets, the MRP curve for labour slopes downward because: A. of the diminishing marginal productivity of labour B. the output price falls as the output level rises C. the wage rate rises as the amount of labour rises D. Both A and B are correct 12. Explain the follow

12、ing puzzle. Over the long run, worldwide supplies of agriculture products have increased dramatically, but at the same time farmers incomes have also fallen sharply.A. Total revenue from farming decreased as output increased because demand for most farm products is inelastic. B. The demand for farm products has declined over the past few decades. C. Farm price supports have robbed farmers of their income. D. All of the above.院系： 专业