[代PO]效用函數問題 - 經濟

By Ophelia
at 2011-05-08T21:40
at 2011-05-08T21:40
Table of Contents
請問一題效用函數問題:
某甲的效用函數為U(x,y)=x+y^(1/2), 所得40。
原來x與y的價格分別是4與1,今y的價格上漲為2,
則欲維持價格變動前的效用,甲的所得必須增加為多少?
提問者目前的程度只知道須用4x+y=40和U(x,y)的交點求解,
其他就不知道,懇請高手幫忙解答,謝謝...
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at 2011-05-12T12:13
at 2011-05-12T12:13

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at 2011-05-12T20:20
at 2011-05-12T20:20
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