北大考古題 - 經濟
By Frederic
at 2012-06-26T22:41
at 2012-06-26T22:41
Table of Contents
U(x.y)=xy+10y px>0 py>0代表蘋果和香蕉價格
收入為I>0
如追求效用最大 求出蘋果和香蕉需求曲線方程式
我不知該如何下手
感恩
效用極大是要Mux/Muy=px/py嗎?
2.同上題 假設px=1 py=1 I=20 計算x和y的所得彈性並說明
二種財貨為正常財、劣等財、或中性財(與所得無關)
第2題我也不懂 判斷商品為何種財貨
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