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标题: CFA level 1 真题 1998 经济学 (不懂为什么) [打印本页]

作者: Helsinki 时间: 2008-5-26 11:36 标题: CFA level 1 真题 1998 经济学 (不懂为什么)

43. If a profit-maximizing firm finds that its marginal revenue exceeds its marginal cost, the firm
should:
A. increase output no matter whether the firm is a price taker or a price searcher.
B. decrease output no matter whether the firm is a price taker or a price searcher.
C. increase output if the firm is a price taker but not necessarily if the firm is a price
searcher.
D. increase output if the firm is a price searcher but not necessarily if the firm is a price
taker.

作者: allen_wml 时间: 2008-5-27 16:38

选A？我觉得不管是价格接受这还是价格制定者，只要是在利益最大化的前提下，都会选择MR=MC来生产，不知道这样理解对不对。

作者: simmy02 时间: 2008-5-28 10:10

是不是c啊，垄断是可以区别定价的。

作者: tinygrace 时间: 2008-6-12 02:13

should be C

for the price taker,when MR>MC, it means quantities of outputs are less than the equilibrium point.therefore, the they need to increase the outputs.

for the price searcher, it doesn't matter, since they just set the Quantities by MR=MC

[此贴子已经被作者于2008-6-12 2:14:27编辑过]

作者: Cody2008 时间: 2008-6-12 12:23

QUOTE:

以下是引用tinygrace在2008-6-12 2:13:00的发言：

should be C

for the price taker,when MR>MC, it means quantities of outputs are less than the equilibrium point.therefore, the they need to increase the outputs.

for the price searcher, it doesn't matter, since they just set the Quantities by MR=MC

I doubt it.

For price takers, they don't worry about such thing as equilibrium at all and just treat demand is infinite. Why are we confusing individual firm behavor with aggregate product demand/supply equilibrium.

For price searchers, they also care and it will be beneficial for them to increase demand until MR = MC. Note here the question indicates clearly they are currently experiencing MR > MC not that they are already in the state of MR = MC.

作者: ffkly 时间: 2008-6-16 01:11

画个图就清楚了阿,应该是C

作者: ambanna 时间: 2008-6-19 15:41

无论什么类型的firm,

mr=mc都是均衡产量条件

如果mr》mc，不增加产量他是傻蛋吧？

作者: aladdin213 时间: 2008-6-23 16:17

很多时间没看过了。。。searcher和taker的定义忘记了

作者: wjforest 时间: 2008-7-23 11:21

so, what is the final answer?[em01]

作者: tweety0930 时间: 2008-7-23 13:47

A.

MR=MC always true for profit maximizing entities.

for takers, MR=MC=P

for unregulated searchers, Q is determined as MR=MC, P is charged according to the market Demand Curve

作者: sjtu_hy 时间: 2008-7-27 09:20

应该是A  MC=MR决定均衡产量,只要MR大于MC, 就增加产量,从而增加收入.无论是什么性质的企业都只这样

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