题目
a.在没有对外贸易时,美国和欧洲汽车市场上均衡的厂商数量是多少?
b.在没有对外贸易时,美国和欧洲汽车市场上均衡的价格是多少?
c.现在假设美欧之间进行自由贸易,美国市场上除了原有的3亿人口外,将增加5.33亿人口。在美国和欧洲汽车市场上将有多少汽车厂商?汽车新的均衡价格是多少?
d.美国市场上汽车的价格在b和c中为何不同?自由贸易改善了消费者的福利吗?是怎样改善的?
Suppose that fixed costs for a firm in the automobile industry (start- up costs of factories, capital equipment, and so on) are $5 billion and that variable costs are equal to $17,000 per finished automobile. Because more firms increase competition in the market, the market price falls as more firms enter an automobile market, or specifically, where n represents the number of firms in a market. Assume that the initial size of the U.S. and the European automobile markets are 300 million and 533 million people, respectively.
a.Calculate the equilibrium number of firms in the U.S. and European automobile markets without trade.
b.What is the equilibrium price of automobiles in the United States and Europe if the automobile industry is closed to foreign trade?
c.Now suppose that the United States decides on free trade in automobiles with Europe. The trade agreement with the Europeans adds 533 million consumers to the automobile market, in addition to the 300 million in the United States. How many automobile firms will there be in the United States and in Europe combined? What will be the new equilibrium price of automobiles?
d.Why are prices in the United States different in (c) than in (b) ? Are consumers better off with free trade? In what ways?
第1题
假设某完全竞争行业有100个厂商,单个厂商的成本函数为 STC=0.1Q2+9+10。单位:美元。
第2题
A.增加产量。 B.减少产量。 C.停止生产。
第4题
A.边际成本是5美元,平均可变成本是8美元
B.边际成本是5美元,平均可变成本是5美元
C.边际成本是5美元,平均总成本是8美元
D.边际成本是5美元,平均总成本是5美元
第7题
假设某完全竞争行业中有100个相同的厂商,每个厂商的成本函数为STC=0.1Q2+Q+10,成本以美元计算。
(1)求市场供给函数。
(2)假设市场需求函数为Q d=4 000-400P,求市场的均衡价格和产量。
(3)假定对每单位产品征收0.9美元的税,新的市场均衡价格和产量又为多少?厂商和消费者的税收负担各是多少?
第8题
A.增加产量。 B.停止生产。 C.减少产量。
第9题
完全竞争行业中某厂商的成本函数为STC=Q³-5Q²+20Q+50,成本以美元计算,假设产品价格为45美元。
(1)求利润最大时的产量及利润总额。
(2)如果市场需求发生变化,由此决定的新的价格为25.5美元,在新的价格下,厂商是否会发生亏损?如果亏损,亏损多少?
(3)该厂商在什么情况下停止营业?
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