NO.PZ2018091706000008
问题如下：
At the company’s morning meeting, analyst A state: According to J-curve, if the currency of the country X depreciation will cause exports to become more competitive, so will immediately increase the exports and decrease the imports.
The manager respond analyst: I don’t think so.
Which of the following statements is most likely correct?
选项：
A.Neither of them make mistake.
B.Manager’s respond is mistake.
C.Analyst’s state is mistake.
解释：
C is correct.
考点：flow mechanism.
解析：这道题的考点是flow mechanism, 本币有贬值，进口商品更贵，出口商品更便宜，这导致出口增加以促使经常账户赤字回归平衡状态。但是由于time lag的作用（例如，短期出口商品因为合同等文书相关限制，无法短时间内改变出口数量。更便宜价格单没有更多销量带动），本币贬值不会马上体现在出口数量上。
贸易合同签订，固定了价格和数量，换言之是价、量都不变，合同里的“价”约定的是“收外币”，若本币贬值，那销售额（=价*量），因为换来的本币更多了是不是应该增加？
