準線性效用函數的問題 - 經濟

By Daph Bay
at 2010-07-15T20:20
at 2010-07-15T20:20
Table of Contents
我大概曉得準線性效用的表示通常是類似這樣
U(x,y) = lnX + Y
不過我一直想不通
為什麼以這個函數來看X會是中性財呢?
我有想到這邊 MRS = MUX/MUY = 1/X
那為什麼X是中性財呢??
希望好心人可以替我解答了
(我困惑好久了.....囧)
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