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kevinzhu · 2020年02月26日

问一道题:NO.PZ2016031001000075

问题如下:

The annual yield-to-maturity, stated for with a periodicity of 12, for a 4-year, zero coupon bond priced at 75 per 100 of par value is closest to:

选项:

A.

6.25%.

B.

7.21%.

C.

7.46%.

解释:

B is correct.

The annual yield-to-maturity, stated for a periodicity of 12, is 7.21%. It is calculated as follows:

PV=FV(1+r)NPV=\frac{FV}{{(1+r)}^N}

75=(100(1+r)4×12)75={(\frac{100}{{(1+r)}^{4\times12}})}

10075=(1+r)48\frac{100}{75}=(1+r)^{48}

1.33333 =(1+r)48

[1.33333]1/48 = [(1+r)48]1/48

1.3333302083= (1 + r)

1.00601 = (1 + r)

1.00601−1 = r

0.00601 = r

r × 12 = 0.07212, or approximately 7.21%

with periodicity of 12, 每年复利12次, 为何不能直接N=4*12=48 再用计算器计算出来?

1 个答案
已采纳答案

吴昊_品职助教 · 2020年02月26日

用计算器也是可以的。输入PV=-75,FV=100,PMT=0,N=4*12=48,算得I/Y=0.601*12=7.21

kevinzhu · 2020年02月26日

I/Y也还要乘上12? 之前n不是已经乘上12了吗?

吴昊_品职助教 · 2020年02月26日

年限是年限,利率是利率,都需要进行对应的调整。

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