NO.PZ2016010802000154
问题如下：
When a central bank announces a decrease in its official policy rate, the desired impact is an increase in:
选项：
A.investment.
B.interbank borrowing rates.
C.the national currency’s value in exchange for other currencies.
解释：
A is correct.
Investment is expected to move inversely with the official policy rate.
考点：federal fund rate
解析：市场利率的下降会鼓励投资，那么投资增加而非下降，所以A选项正确。
银行间借贷利率会跟随federal fund rate一同下降，B选项错误。
利率的下降会导致收益率的下降，从而引起外资出逃，进而降低汇率水平，所以C选项错误。
我读题的时候的想法是，宣布decrease policy rate的原因是现在policy rate大于neutral rate，所以要采取紧缩政策，要降低MS，所以会减少投资，同时利率下降，本币应该是贬值的。
老师可以帮我看看我这个想法到底错在哪里吗？
