NO.PZ2018091706000007
问题如下：
Analyst told his client, if you want to make FX carry trades, the international parity condition cannot hold. So which of the following parity theories least likely hold?
选项：
A.
international fisher effect.
B.
covered interest rate parity.
C.
uncovered interest rate parity.
解释：
C is correct.
考点：做carry trade的大前提是什么。
解析：uncovered interest rate parity不能成立。如果uncovered interest rate parity成立，那么X国家的贬值幅度正好抵消X国家的收益率的优势，没有套利利润。
所以covered是基于无套利机制，所以可以用来套利，
uncovered因为对未来现价的无偏估计，没有套利机会
