[考試] 彈性的計算
來源: 93中山財管
科目:經濟學
問題:
The price floor of rice is set at P1 by government.
Under P1, the farmers will then produce Y tons of rice.
Under P1, however, the consumers will only demand X tons of rice (X<Y).
With Y tons of rice production, to clear the market,
the price needs to rice needs to reduce to P0.
If we know, P1*(Y-X)>(P1-P0)*Y,
then the elasticity of demand between P0 and P1 is ?
A.greater than 1 B.smaller than 1 C.equal to 1 D. uncertain of its range
答案是A
我的想法:
本來想直接把給的條件移項 變成點彈性(P1/Y)*[(Y-X)/(P1-P0)]>1
可是在Y數量的需求價格是P0 不是P1 總覺得好像哪裡有錯...
上來向板上的鄉民請教一下 謝謝~
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