關於第一福利定理一些疑惑 - 經濟

By Delia
at 2009-12-26T17:02
at 2009-12-26T17:02
Table of Contents
其實這算月經題 我爬過之前的文章
卻有些小地方一直想不通
特來請教~
1.Varian的書中要求第二福利定理的前提是
雙方偏好都是convex
可是在convex下似乎會出現兩個以上的的競爭解
例如兩條斜率相同的完全替代偏好
是不是應該要求strictly convex??
好讓競爭解絕對只出現一個
2.第一福利定理的前提是競爭市場
"Consumer behaves competitively.In edgeworth box,
it is unlikely that they would each take price as given."
我對這段話的解讀是
只要消費者設法以市場支配力爭取自身利益極大,就算兩者都不是價格接受者也行
但是這解讀怪怪的,許多中文書都把"兩人為價格接受者"列為必要的前提
不曉得這段話應該做怎樣的詮釋??
感謝各位~
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