作者Tesngray (Tesngray)
看板Economics
标题[考试] 两个相同成本的厂商进行贸易？
时间Thu Feb 7 15:57:52 2013
Suppos there are two countries. In the same industry, each country has only
one producer. Producers produce the same good. Two producers have the same
cost function and face the same demand function, Suppose there is
international trade between two countries and producers choose output to
maxmize profit. there is also no collusion between firms.
(a) compared with the scenario when there is no trade, the price charged
by a firm is larger.
(b) compared with the scenario when there is no trade, the production level
of each firm is larger.
(c) compared with the scenario when there is no trade, the deadweight
loss is larger.
(d) compared with the scenario when there is no trade, the profit of each
firm increase.
我的想法是If there is no trade, 则厂商就是独占市场，当然订高价罗， 所以选(A)罗
可是下面的(B)、(C)、(D)怎麽算呢 >"< 晕倒
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1F：→ Dukoff:我英文不太行，所以不太敢回答楼主问题。我觉得这题好像是 02/08 16:13
2F：→ Dukoff:说两市场的两独占厂商若有勾结，相对於完全没勾结之下，会 02/08 16:14
3F：→ Dukoff:有怎样的差异。且题目好像不是四题都要算出来。 02/08 16:15
4F：推 moondark92:各国有唯一独占厂商,国家间发生贸易後和没贸易前比较 02/08 18:16
5F：→ moondark92:市场融合,需求曲线水平加总,然後独占变寡(双)占 02/08 18:18
6F：→ moondark92:由於两国原需求和成本函数都相同,原来产量和价格应同 02/08 18:20
7F：→ moondark92:市场结合後若二者皆维持产量不变如同独占厂商结合结果 02/08 18:22
8F：→ moondark92:但任一厂商片面增加产量皆可增加利润...... 02/08 18:22