103身障三等 經濟學 (供需價格) - 考試

By Ingrid
at 2014-06-10T23:05
at 2014-06-10T23:05
Table of Contents
Q.23
假設稻米的市場需求函數是 q=a-bp,q, p 分別是市場需求量與價格,a, b > 0,
則使全體稻農總收益最大的價格是:
(A) a/2
(B) a/2b
(C) a/3b
(D) 2a/3b
答案:(B)
求總收益最大,TR=P*Q
直接把各選項的值丟進去相乘找最大者嗎?
或是有較快速的判斷解法?
謝謝~
--
假設稻米的市場需求函數是 q=a-bp,q, p 分別是市場需求量與價格,a, b > 0,
則使全體稻農總收益最大的價格是:
(A) a/2
(B) a/2b
(C) a/3b
(D) 2a/3b
答案:(B)
求總收益最大,TR=P*Q
直接把各選項的值丟進去相乘找最大者嗎?
或是有較快速的判斷解法?
謝謝~
--
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