五等經濟考題疑問 - 考試
By Olga
at 2012-12-23T11:36
at 2012-12-23T11:36
Table of Contents
第一題是今年的地特五等的考題~
第二題是課本習題的練習題
請會的人幫忙解答一下,謝謝
1-若政府獨占事業之固定成本為200,邊際成本為20,市場需求函數為P=100-Q
,P為價格,Q為數量,在政府追求利潤最大化之下,下列敘述何者正確?
A)價格為60 B)數量為60 C)消費者剩餘1,600 D)政府利潤1600
Ans:A
疑問:政府追求利潤最大化,我用P=mc的概念去解題,所以求出P=20,但和解答不一樣,
請問那裡觀念有誤?
2-當食品支出占所得比例所得增加而下降,此事實指出食物為:
A)劣等品 B)奢侈品 C) 所得需求彈性<1 D)正常物品且具有需求彈性
Ans:C
疑問:我記得劣等品的定義為所得增加,但需求量會減少,所以我覺得A也是對的,
請問為何不能選A呢?
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