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Fate Chain · 2020年05月02日

问一个老师课堂上讲到的点

问题如下:

Exhibit 1. Three-Factor Model of Term Structure

Note: Entries indicate how yields would change for a one standard deviation increase in a factor.

Calculate the expected change in yield on the five-year bond resulting from a one standard deviation decrease in the level factor and a one standard deviation decrease in the curvature factor.

选项:

A.

decreasing by 0.8315%.

B.

decreasing by 0.0389%.

C.

increasing by 0.0389%.

解释:

C is correct.

考点:Managing Yield Curve Risks: Decompose the risk into three factors

解析:图1中的因子表示各个因子变动一个标准差对债券收益率的影响,因此对于5年期的债券,level变动一个标准差对债券收益率的影响为-0.4352%; curvature变动一个标准差对债券收益率的影响为0.3963%,因此Level降低一个标准差,Curvature降低一个标准差对债券收益率的影响为:

(1)×(0.4352%)+(1)×0.3963%=0.0389%(-1)\times(-0.4352\%)+(-1)\times0.3963\%=0.0389\%

老师您好!

我在看视频课程【基础课-Managing Yield Curve Risks: Key Rate Duration】7分30秒处,何老师用此前计算平均还款期的duration,直接加了百分号,然后计算收益率曲线对portfolio价格的影响,我没明白其中原理,还请老师指导,谢谢!
1 个答案

WallE_品职答疑助手 · 2020年05月05日

核心的概念是 %change in p =-Duration* %change in yield。老师在这里直接加%是因为老师/题目中假设的是利率变动1%,当duration 等于2的时候 2*1%=2%。

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