經濟-補償變量 - 考試
By Ophelia
at 2013-04-26T17:46
at 2013-04-26T17:46
Table of Contents
假設甲的效用函數為U(X,Y)=X+2Y 所得為100。
原先x 與y的價格等於1,今y的價格上漲為3,則補償變量為何?
A)60 B)100 C)200 D)300
Ans:B)100
疑問:我算到一半卡住,麻煩請會的人幫忙解答…謝謝
預算線=X+Y=100 效用函數為X+2Y
MUx/MUy(=1/2)<Px/Py(=1/1) →故都買Y
Qy=M/Py=100/1=100
故原效用U0=2*100=200
補償變量是用新的價格達到舊效用(U0=200)所要補償的部份。
X+3Y=??
St.U=X+2Y=200
接著就算不下去了…
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