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小爽加油呀 · 2022年12月25日

请问一下c应该根据什么计算呢?

NO.PZ2018122701000036

问题如下:

Based on Basel II rules for backtesting, a penalty is given to banks that have more than four exceptions to their 1-day 99%VaR over the course of 250 trading days. The supervisor gives these penalties based on four criteria. Which of the following causes of exceptions is most likely to lead to a penalty?

选项:

A.

The bank increases its intraday trading activity.

B.

A large move in interest rates was combined with a small move in correlations.

C.

The bank’s model calculates interest rate risk based on the median duration of the bonds in the portfolio.

D.

A sudden market crisis in an emerging market leads to losses in the equity positions in that country.

解释:

C is correct.

考点 Backtesting VaR

解析 In the case of a bank that changed positions more frequently during the day, a penalty should be considered, but it is not necessarily given. In the case of bad luck, no penalty is given, as would be the case for a bank affected by unpredictable movements in rates or markets. However, when risk models are not precise enough, a penalty is typically given since model accuracy could have easily been improved.

不用medium应该用什么

1 个答案

DD仔_品职助教 · 2022年12月26日

嗨,爱思考的PZer你好:


C就是凑选项的,median duration在考纲中没有专门对应的概念,字面看来就是拿债券中久期的中位数作为组合的久期,但实际上我们在计算组合的久期是使用的加权平均,weight average of duration,也就是组合里各个资产的权重乘个各个资产的久期之后相加。

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