老师请问一下， 这题可以用interest rate parity 吗， 为什么不选c呢

问题如下：

If the target policy rate is decreased,

选项：

consumers will increase their expenditure.

The long-term interest rate will decrease at the same percent.

Domestic currency will appreciate relative to foreign currency.

解释：

A is correct.

A decrease in target policy rate will increase consumer spending and business investment as they expect a future economic growth. The long-term interest rate change may not be synchronized in policy rate change. Low policy rate is less competitive in the market, foreign currency will call back to invest in other high yield countries, thus the domestic currency will depreciate.

考点： target policy rate

解析：目标政策利率的下调将增加消费者支出和企业投资，因为他们预计未来的经济增长。所以A选项正确

长期利率变化可能与政策利率变化不一定是同步的。所以B选项错误。

低政策利率在国际市场上的竞争力较弱，外币会投资于其他高收益国家，从而导致本币贬值。所以C选项错误。