开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

非恒名 · 2023年04月29日

为什么不选C呢?

* 问题详情,请 查看题干

NO.PZ202209060200004603

问题如下:

Is Adams is most likely correct in her assessment of measurement error?

选项:

A.Yes

B.No, because passive management would preclude measurement error

C.No, because asset liquidity risk is greater than the risk of measurement error

解释:

Solution

A is correct. Measurement error for Asset BPV can arise even in the classic passive immunization strategy for Type I cash flows, which have set amounts and dates. Asset liquidity can become a risk factor in strategies that add active investing to otherwise passive fixed-income portfolios and would not be applicable here.

B and C are incorrect.

Passive 也有measurement risk?

1 个答案
已采纳答案

pzqa31 · 2023年04月29日

嗨,从没放弃的小努力你好:


在Passive strategy里面(例如Duration-matching策略),我们需要让资产的关键指标匹配负债的关键指标,例如Duration/Convexity等数据,其实对Duration-matching的效果起到非常重要的影响。

如果本身债券组合的Duration在计算的时候就算错的话、或者有误差的话,那用这个有误差的指标去做Duration-matching,其实匹配的效果可能不会太好。

这种由指标误差带来的不匹配风险,我们就称为Risk of measurement error。在Passive策略里,这种风险是较大的。

最常见的,例如在单期负债匹配时,需要让资产的Macaulay duration = 负债的Macaulay duration(Liability's due date),常见的错误就是在计算Portfolio asset macaulay duration时,是对成份债券的Macaulay duration做了简单的加权平均,用这个Average macaulay duration来充当Portfolio asset的Macaulay duration,其实这是有一定误差的。

----------------------------------------------
就算太阳没有迎着我们而来,我们正在朝着它而去,加油!