求助一道中级微观经济学的题目 50
Ifthereareonlytwogoods,anincreaseinthepriceofgood1willincreasethedemandforgood2:(A)if...
If there are only two goods,an increase in the price of good1 will increase the demand for good2:
(A)if and only if price elasticity of demand for good2 is greater than 1 in absolute value
(B)whenever both goods are normal goods
(C)only if the two goods are perfect substitutes
(D)never
(E)none of the above
答案是A，但是我不知道这怎么判断出来的，求大家指点啊！！ 展开
(A)if and only if price elasticity of demand for good2 is greater than 1 in absolute value
(B)whenever both goods are normal goods
(C)only if the two goods are perfect substitutes
(D)never
(E)none of the above
答案是A，但是我不知道这怎么判断出来的，求大家指点啊！！ 展开
2个回答
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