104高考經濟學(財經廉政) - 高考
By Caroline
at 2015-08-11T10:07
at 2015-08-11T10:07
Table of Contents
3 下列獨占性競爭廠商之敘述何者錯誤?
A獨占性競爭廠商之短期利潤可能為正亦可能為負
B獨占性競爭廠商在長期均衡時其價格等於邊際成本
C獨占性競爭市場裡廠商可以自由進出市場,因此獨占性競爭廠商之長期利潤為零
D獨占性競爭廠商在長期有發揮最大的生產效率
答案是D 但我覺得BD都錯
B 應該是P=LAC才對吧 不是P=LMC
D是錯的沒問題
5 某一生產要素之需求與供給曲線可表示如下:
QFd=150-0.6Pf QFs=50+0.4Pf QFd是要素需求量 QFs是要素供給量 P是要素價格
求該要素的經濟租
A 2250 B2500 C 2750 D 3000
答案為A
想法
解出Pf=100 Qf=90
畫圖是一塊梯型面積=(90+50)*100/2=7000
但是 選A的話 算式為 50*90/2 =2250 這是錯誤的啊
因為要素供給線從橫軸射出 不是縱軸啊
該題是否無解??
我不是考這張考卷 所以沒有提疑義
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