Vannie2020-02-09 13:31:11
老师,Q1中这里为什么是maturity match而不是用duration match?为什么maturity和effective duration是不同的?
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Chris Lan2020-02-10 10:26:43
同学你好
原版书中,定段有说明
The G-spread is often used when the benchmark bond is a government bond. G-spread is the spread over an actual or interpolated government bond. When no government bond exists that has the same maturity as the credit security, a linear interpolation of the yields on two on-the-run government bonds is used as the benchmark rate. The yields of the two government bonds are usually weighted so that their weighted average maturity matches the credit security’s maturity. Simplicity is a key advantage of the G-spread: It is easy to calculate and understand, and different investors usually calculate it the same way.
另外 到期期限和有效久期是不同的概念。到期期限是指债券还有多少时间到期,有效久期是指利率变化,债券价格实际的影响有多少。去年的教材这进而写成ED匹配,今年进行了勘误。
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