作者genius17 ( )
看板Economics
标题[请益] 弹性相关问题
时间Mon Mar 20 23:58:47 2006
题目如下：
As a result of a decline in interest rates and a rise in household income,
the demand curve for housing has shifted to the right, but has retained the
same slope. Consequently, the elasticity of demand for housing
(A)has declined (B)has increased
(C)has remained unchanged (D)cannot be compared
答案是A，我问的老师跟我解释是说因为只有外生变数变动内生变数不变，
所以P固定。在P不变的情况下需求线平行右移，弹性下降。
但我有个疑惑，当需求线右移的时候，考虑供给的状况下，
成交的价格跟数量应该也会改变，而这题为什麽不用考虑供给面呢？
烦请回答，谢谢！<(_ _)>
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1F：推 whitemind:我的想法是D 这题好像只能算出供给弹性 无法求需求弹性 03/21 01:07