需求函數 - 經濟
By Edith
at 2012-05-25T00:24
at 2012-05-25T00:24
Table of Contents
來源: (例如: 99 年度關務特考)
科目:經濟
問題:商品X的需求函數為Qx=100-2Px+Py+0.5I,式中I為所得,Px=1,則下列何者正確
A.X是劣等品 B.Y是劣等品 C.所得增加時X的需求量會增加
D.所得增加時Y的需求量會減少
ANS;D
我的想法: I增加Qx的數量不是會增加,為何不是C?
由該式又應如何判斷I增加Y需求量會減少?
--
科目:經濟
問題:商品X的需求函數為Qx=100-2Px+Py+0.5I,式中I為所得,Px=1,則下列何者正確
A.X是劣等品 B.Y是劣等品 C.所得增加時X的需求量會增加
D.所得增加時Y的需求量會減少
ANS;D
我的想法: I增加Qx的數量不是會增加,為何不是C?
由該式又應如何判斷I增加Y需求量會減少?
--
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經濟
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