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max · 2019年06月08日

问一道题:NO.PZ2018062016000017 [ CFA I ]

请问老师什么时候需要转化为EAR什么时候可以直接用年利率除以频率计算?

问题如下图:

选项:

A.

B.

C.

解释:

2 个答案
已采纳答案

源_品职助教 · 2019年06月08日

所有情况其实都要除,只不过按按年复利的时候,投资期就是一年,所以年份除以1年,得到的结果还是年份。

但是如果按月投资,对应利率水平就是年利率除以12,按季度就是年率除以4,按天就是年份除以365

这类题目必须使用每一期对应的投资利率。

简ying · 2019年07月13日

如果EAR算出3.0416%,代入N=5,I/Y=3 .0416,PV=0,FV=100000,算出年PMT=18819.8,再除以12就是1568,请问哪里不对?

源_品职助教 · 2019年10月01日

因为计算出了EAR以及 N=5,那么就是默认是按年的方式来复利计算,但是题目说的是按月复利,所以这样计算的答案是不对的。

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