一題個經題目 懇請教導 - 經濟

By Audriana
at 2006-12-07T19:55
at 2006-12-07T19:55
Table of Contents
假設某甲總是使用1匙奶精和2匙糖在他的每杯咖啡中,且不使用奶精與糖做其他用途。
假設: X1是奶精的數量,P1是一匙奶精的價格
X2是糖的數量,P2是一匙糖的價格
X3是咖啡的數量,P3是一杯咖啡的價格
若消費者的效用為加了糖與奶精的咖啡
則 (1) 此消費者的效用函數為何?
(2) 此消費者對咖啡的需求函數為何?
我的解:(1) U=min{X1,2X2, X3}
(2) X3=2X2+X1
M= P1X1+P2X2+P3X3 算出X3
不了解的地方:(1) 是將X3也寫入效用函數中是否正確?
(2) 若是這樣,則我解不出X3
想請問板上的各位高手,我寫的是哪裡出錯了呢? 謝謝指教:)
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