100地特五等經濟學 - 考試
By Poppy
at 2013-02-19T19:56
at 2013-02-19T19:56
Table of Contents
如果對航空的需求價格彈性為1.4,當機票票價由200 元上漲至300 元時,需求數量將減
少約:
A.40%
B.56%
C.70%
D.140%
答B
想法:需求彈性=Q變動量/P變動量=DeltaQ/Q1+Q2/DeltaP/P1+P2
1.4=Q%/200-300/200+300
Q算出來70..
不知道哪裡計算錯誤或者觀念有錯...SOS
--
少約:
A.40%
B.56%
C.70%
D.140%
答B
想法:需求彈性=Q變動量/P變動量=DeltaQ/Q1+Q2/DeltaP/P1+P2
1.4=Q%/200-300/200+300
Q算出來70..
不知道哪裡計算錯誤或者觀念有錯...SOS
--
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考試
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