作者yitsung (夜冲弟)
看板Economics
标题Re: [请益] 独占市场
时间Sat Jan 16 21:47:06 2010
※ 引述《betray911015 (回头太难)》之铭言：
: 1. A multimarket price discriminator sells its product in
: Florida for three times the price it sets in New York.
: Assuming the firm faces the same constant marginal cost
: in each market and the price elasticity of demand in
: New York is -2.0, the demand in Florida
: a. has an elasticity of -6.0
: b. is more price elastic than the demand in New York
: c. has an elasticity of -0.2
: d. has an elasticity of -0.67
: 我的想法:因为是独占市场，不是弹性在大於一都成立吗??
假设 New York 的定价是 p, 则 Florida 的定价是 3p
独占两市场会满足 MR1 = MR2 = MC
即p1*(1+1/Ed1) = p2*(1+1/Ed2) = MC (Ed1跟Ed2是第一个跟第二个市场的弹性)
题目的数字带入得到 p*(1-1/2) = 3p*(1+1/Ed) 解Ed
得到Ed为-1.2
你的c选项打错了, 因为我手边有一样的题目, c选项应该是-1.2
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1F：推 estupid:算好几次...我还以为我算错XDDDD 01/16 21:57
2F：推 happypool:选项有问题没错 不过这一题应该不用算 2.0>Ed>1.0 01/16 22:06
3F：→ happypool:只要知道Florida Ed 小於 New York Ed 且独占Ed>1即可 01/16 22:09
4F：推 estupid:佛罗里达相对价格高->弹性较小 且独占在弹性大於1处生产 01/16 22:14
5F：→ betray911015:谢谢你 01/16 23:28