經濟彈性一題 - 經濟

By Susan
at 2007-01-07T00:09
at 2007-01-07T00:09
Table of Contents
※ [本文轉錄自 Grad-ProbAsk 看板]
作者: Pizzaro (披薩羅) 看板: Grad-ProbAsk
標題: [問題] 經濟彈性一題
時間: Sun Jan 7 00:09:35 2007
The demand for mini cassette players can be characterized by the following
point estimates:price elasticity=-2,cross-price elasticity with AA batteries
=-1.5,and income elasticity=3.Accordingly,a 3% price reduction in cassette
players would be necessary to overcome the effect of a 2% decline in income.
答案:對
我的想法:
如果單純從價格下降百分之三,則需求量會上升百分之六
所得下降百分之二造成需求量下降百分之六
則兩效果會抵消!
但是為什麼不考慮AA電池的交叉彈性呢??cassette player價格下降,AA電池應該需求量會
上升吧!所以所得不完全用於cassette player,則效果不會抵銷!
還有另一個問題:一般不是說Ed=Eyx+Em,是在什麼條件下才會成立呢???
如果隨便找另一個物品算交叉彈性也會成立嗎??
這題就不成立~
拜託各位大大幫幫忙了!!非常疑惑
萬分感謝!!!!
--
作者: Pizzaro (披薩羅) 看板: Grad-ProbAsk
標題: [問題] 經濟彈性一題
時間: Sun Jan 7 00:09:35 2007
The demand for mini cassette players can be characterized by the following
point estimates:price elasticity=-2,cross-price elasticity with AA batteries
=-1.5,and income elasticity=3.Accordingly,a 3% price reduction in cassette
players would be necessary to overcome the effect of a 2% decline in income.
答案:對
我的想法:
如果單純從價格下降百分之三,則需求量會上升百分之六
所得下降百分之二造成需求量下降百分之六
則兩效果會抵消!
但是為什麼不考慮AA電池的交叉彈性呢??cassette player價格下降,AA電池應該需求量會
上升吧!所以所得不完全用於cassette player,則效果不會抵銷!
還有另一個問題:一般不是說Ed=Eyx+Em,是在什麼條件下才會成立呢???
如果隨便找另一個物品算交叉彈性也會成立嗎??
這題就不成立~
拜託各位大大幫幫忙了!!非常疑惑
萬分感謝!!!!
--
Tags:
經濟
All Comments

By Jake
at 2007-01-11T04:22
at 2007-01-11T04:22

By Xanthe
at 2007-01-14T03:45
at 2007-01-14T03:45

By Bennie
at 2007-01-17T12:45
at 2007-01-17T12:45

By Yedda
at 2007-01-19T23:31
at 2007-01-19T23:31

By Elizabeth
at 2007-01-23T02:22
at 2007-01-23T02:22

By Daniel
at 2007-01-26T06:53
at 2007-01-26T06:53
Related Posts
一般均衡

By Ina
at 2007-01-06T14:55
at 2007-01-06T14:55
一般均衡

By Quintina
at 2007-01-06T12:31
at 2007-01-06T12:31
生產面要怎麼唸?

By Tristan Cohan
at 2007-01-06T11:37
at 2007-01-06T11:37
一般均衡

By Thomas
at 2007-01-06T03:04
at 2007-01-06T03:04
My course syllabus in political economics

By Heather
at 2007-01-04T20:17
at 2007-01-04T20:17