财法一第二次经济学原理小考 日期：103年12月26日 一、选择题 (30%) 1. A binding price ceiling (1) causes a surplus. (2) caeses a shortage. (3) is set at a price above the equilibrium price. (4)is set at a price below the equilibrium price. (A). (2) only (B). (4) only (C). (1) and (3) only (D). (2) and (4) only 2. A binding price floor (1) causes a surplus. (2) caeses a shortage. (3) is set at a price above the equilibrium price. (4)is set at a price below the equilibrium price. (A). (1) only (B). (3) only (C). (1) and (3) only (D). (2) and (4) only 3. When the minimum wage is set above the equilibrium market wage, (A).there will be an excess demand for labor at the minimum wage. (B).it will have no effect on the quantity of labor employed. (C).the unemployment rate will rise. (D).the qualrice of the labor force will rise. (E).the unemployment rate will fall. 4. The particular price that results in quantity supplied being equal to quantity demanded is the best price because it (A). maximizes costs of the seller. (B). maximizes tax revenue for the government. (C). maximizes the combined welfare of buyers and sellers. (D). minimizes the expenditure of buyers. 5. Consumer surplus (A). is the amount of a good that a consumer can buy at a price below equilibrium price. (B). is the amount a consumer is willing to pay minus the amount the consumer actually pays. (C). is the number of consumers who are excluded from a market because of scarcity. (D). measures how much a seller values a good. 6. Total surplus in a market will increase when the government (A). imposes a binding price floor or a binding price ceiling on that market. (B). imposes a tax on that market. (C). Both a and b are correct. (D). Neither a nor b is correct. 7. Refer to Figure 1. What is the consumer's marginal rate of substitution? (A). 12 (B). 4 (C). 1 (D). We do not have enough information to answer the question because the MRS varies along the graph. 8. Refer to Figure 1. What is the consumer's marginal rate of substitution as she moves A to B ? (A). 12 (B). 6 (C). 4 (D). 1 9. Refer to Figure 2. Suppose that a consumer is originally at point R. Then the price of good X decreases. Which of the following represents the income effect of the price decrease? (A). the movement from point R to point S. (B). the movement from point R to point T. (C). the movement from point T to point S. (D). None of the above is correct. 10.Refer to Figure 2. Suppose that a consumer is originally at point R. Then the price of good X decreases. Which of the following represents the substitution effect of the price decrease? (A). the movement from point R to point S. (B). the movement from point R to point T. (C). the movement from point T to point S. (D). None of the above is correct. 二、计算题（请写出计算过程，否则不予计分） 1. (30%)　若市场上某项电脑用品之需求与供给曲线分别为　Ｐ＝３００－Ｑｄ； Ｐ＝６０＋２Ｑｓ。如果现在政府对该电脑用品的供给者每部 课徵１５元的从量税，请回答下列问题： (A). 税後市场的均衡价格与数量。 (B). 政府的总税收。 (C). 需求者支付的价格为？ (D). 供给者拿到的价格为？ (E). 供给者转嫁多少从量税给消费者负担？ (F). 课税钱消费者剩余与生产者剩余为多少？ (G). 税後消费者剩余与生产者剩余为多少？ (H). 税後无谓损失为多少？ 2. (20%)　小明的效用函数为Ｕ＝２ＸＹ，若此时小明有所得１２０元， 且Ｐｘ＝２，Ｐｙ＝３，试问当小明消费Ｘ与Ｙ为多少单位时效用达到极大？ 3. (20%)　小瓜需要咖啡因饮料提神，他觉得三杯咖啡（Ｘ财）和四杯茶（Ｙ财）的效用 是一样的。若此时小瓜有所得１０００元，且Ｐｘ＝４０，Ｐｙ＝２５， 试问当小瓜消费Ｘ与Ｙ多少单位时效用达到极大？ Ａｎｓ． 一、ＤＣＣＣＢ　ＤＤＣＣＢ -- --

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