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Captain America · 2022年09月01日

请问这里用EAR怎么求?

NO.PZ2017092702000010

问题如下:

A saver deposits the following amounts in an account paying a stated annual rate of 4%, compounded semiannually:

At the end of Year 4, the value of the account is closest to:

选项:

A.

$30,432

B.

$30,447

C.

$31,677

解释:

B is correct.

To solve for the future value of unequal cash flows, compute the future value of each payment as of Year 4 at the semiannual rate of 2%, and then sum the individual future values, as follows:

根据上表所示,首先计算每笔存款的FV,但是需使用semiannual rate 2%,然后将FV相加求和。

请问这里用EAR算4000复利3年,8000复利2年,7000复利1年,10000复利0年再加总错在哪里?

1 个答案

星星_品职助教 · 2022年09月01日

同学你好,

思路是对的。

这个思路去计算FV的列式展开后,会发现和按照期间利率计算的公式是一致的,和答案解析的表格结果也可以逐项对应的上。如“用EAR算4000复利3年”结果就是表格中的4,504.65。“8000复利2年”结果为8,659.46,“7000复利1年”结果为7,282.80.

可以分项计算后和表格中的数字对比一下。如果有对不上的地方。可以把自己的计算过程和结果发上来具体分析一下。

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