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Phoebe · 2021年06月29日

这个题目答案不恰当,四舍五入 使得A/B答案太容易选错了

NO.PZ2018123101000018

问题如下:

Jane is a bond trader for an investment bank. Exhibit 1 presents the current par and spot rates.

Note: Par and spot rates are based on annual-coupon sovereign bonds.

Based on Exhibit 1, the five-year spot rate is closest to:

选项:

A.

4.40%

B.

4.45%

C.

4.50%

解释:

B is correct.

考点:The Swap Rate Curve和Spot rate的关系

解析:

已知1-year, 2-year, 3-year, 4-year的Spot rate,也知道5-year的Swap rate,根据由Swap rate求Spot rate的方法,有公式:

1=0.0437/(1.025)+0.0437/(1.03)^2+0.0437/(1.035)^3+0.0437/(1.04)^4+1.0437/(1+S5)^5

S5=4.45%

考试时是保留2位还是4位?

1 个答案

WallE_品职答疑助手 · 2021年06月29日

嗨,从没放弃的小努力你好:


您可以把计算器调整为4-6位的,越多越精确,我算出来是0.04453 所以选B

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

nurwinter · 2022年10月12日

请问计算器计算的时候只能每个coupon折现一个一个这样算吗,这个是没有什么计算器简便的算法吗?

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