經濟學選擇題 - 經濟

By Isabella
at 2010-09-26T00:00
at 2010-09-26T00:00
Table of Contents
1.假設Qs 為米酒的供給量,Px為米酒價格,Py為原料價格,R為預期三個月後
米酒價格上漲的幅度,則下列那一個供給函數是合理的?
(A) Qs=1000 -25Px +4Py +120R
(B) Qs=1000 +25Px -4Py +120R
(C) Qs=1000 -25Px +4Py -120R
(D) Qs=1000 +25Px -4Py -120R
答案:D。請問為什麼不是B呢?
2.市場供給函數為Qs=1.5P,市場上有二位消費者分別為,Qd1=12-0.5P,Qd2=8-2P
,則市場均衡的數量是:
(A)5 (B) 7.5 (C) 9 (D) 12
答案:C。請問為什麼不能用消費者的需求函數做水平數量加總後,與供給函數求市場
均衡數量呢?
謝謝!
--
米酒價格上漲的幅度,則下列那一個供給函數是合理的?
(A) Qs=1000 -25Px +4Py +120R
(B) Qs=1000 +25Px -4Py +120R
(C) Qs=1000 -25Px +4Py -120R
(D) Qs=1000 +25Px -4Py -120R
答案:D。請問為什麼不是B呢?
2.市場供給函數為Qs=1.5P,市場上有二位消費者分別為,Qd1=12-0.5P,Qd2=8-2P
,則市場均衡的數量是:
(A)5 (B) 7.5 (C) 9 (D) 12
答案:C。請問為什麼不能用消費者的需求函數做水平數量加總後,與供給函數求市場
均衡數量呢?
謝謝!
--
Tags:
經濟
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