政大轉考考古題 - 經濟

By George
at 2015-04-17T20:55
at 2015-04-17T20:55
Table of Contents
題目大概是Brad每周花20元消費apples and bananas
(PA,PB)=(2.2)時購買(QA,QB)=(6.4)
PA=apple價錢
當PA下降為1元時 購買(QA,QB)=(10.5)
請問apples和bananas為正常財或劣等財?
因為我看2本書本解答都不一樣
所以想問問 感謝!!
這題的觀念是要用後彎去解題嗎?
我的想法是2者皆為正常財 不知道對不對
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