關於效用函數 - 經濟
By Callum
at 2015-11-12T14:20
at 2015-11-12T14:20
Table of Contents
某乙消費x和y兩種財貨的效用函數為:U=xy,已知M=100 Py=1,若x財貨價格
由Px=1上升到Px=2:依Hicks的實質所得概念求x財貨的價格變動的替代效果
與所得效果及補償變量
自行試算:
原均衡 y/x=1
1*x+1*y=100
得x=50 y=50 U=2500
後來:y/x=2/1
2*x+1*y=100
得x=25 y=50 U=1250
當Px上升為2時維持效用不變下
y/x=2/1
xy=2500
得到x=35 y=70
想請問上面的均衡x=35 y=70如何解的呢? 聯立方程式解不是這答案阿~~~
整個卡好久,是不是有其他的技巧忽略了呢? 麻煩各位指導了~~
--
由Px=1上升到Px=2:依Hicks的實質所得概念求x財貨的價格變動的替代效果
與所得效果及補償變量
自行試算:
原均衡 y/x=1
1*x+1*y=100
得x=50 y=50 U=2500
後來:y/x=2/1
2*x+1*y=100
得x=25 y=50 U=1250
當Px上升為2時維持效用不變下
y/x=2/1
xy=2500
得到x=35 y=70
想請問上面的均衡x=35 y=70如何解的呢? 聯立方程式解不是這答案阿~~~
整個卡好久,是不是有其他的技巧忽略了呢? 麻煩各位指導了~~
--
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