NO.PZ201812020100000502
问题如下:
Which duration measure should be matched when implementing Strategy 2?
选项:
A.Key rate
B.Modified
C.Macaulay
解释:
C is correct.
An investor having an investment horizon equal to the bond’s Macaulay duration is effectively protected, or immunized, from the first change in interest rates, because price and coupon reinvestment effects offset for either higher or lower rates.
在single liability matching的时候,因为PVasset=PVliability,Macaulay duration asset=Macaulay duration liability
而此时收益率相当于也是锁定的 r
那 modified duration asset=Macaulay duration asset/(1+r)=Macaulay duration liability/(1+r)=modified duration liability
所以在single liability matching时其实资产和负债所有的duration(modified duration/Macaulay duration liability/PVBP)等于都是相同的
所以为什么只能选C,不能选B?