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如果商品X和商品Y互为替代,则X的价格下降造成()

单选题
2022-03-15 17:42
A、X的需求曲线向左移动
B、X的需求曲线向右移动
C、Y的需求曲线向左移动
D、Y的需求曲线向右移动
查看答案

正确答案
C

试题解析
需求曲线的移动是指在价格不变的情况下,由于需求量的变化引起的曲线平移。当决定需求的其他因素不变,只是由于价格变化而引起消费者愿意且能够购买的商品数量的变化,反映在需求曲线上,表现为曲线上点的移动。本题中,商品X的价格下降,会发生商品的需求曲线上点的移动,而不会发生曲线整体移动的现象。因为商品X与Y存在的替代关于,故Y的需求量将随着X需求量的增加而减少,这种减少不是由Y的价格引起的,Y的需求曲线会向左移动。

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