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金融民工阿聪 · 2021年04月28日

不是一般说operation risk的时候,不属于credit risk 和market risk的就都归到or里面吗

NO.PZ2016072602000029

问题如下:

Consider a bank that wants to have an amount of capital so that it can absorb unexpected losses corresponding to a firmwide VAR at the 1 % level. It measures firmwide VAR by adding up the VARs for market risk, operational risk, and credit risk. There is a risk that the bank has too little capital because

选项:

A.

It does not take into account the correlations among risks.

B.

It ignores risks that are not market, operational, or credit risks.

C.

It mistakenly uses VAR to measure operational risk because operational risks that matter are rare events.

D.

It is meaningless to add VARs.

解释:

B is correct. VAR can be added across different types of risk, but this will provide a conservative estimate of capital as diversification effects are ignored. So answer a. would be for too much capital. Answer c. is not correct because rare events can be factored into operational VAR. Most likely, the bank may have too little capital for other types of risk than those measured by these three categories.

问题如上问题如上问题如上

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小刘_品职助教 · 2021年04月28日

同学你好,

没看懂你的问题。这道题的考察重点是各类风险之间的correlation,一个公司用简单的MR,CR,OR加和的方法算99%的var来计算capital,那种因素会导致这个结果被低估,因为他是按照correlation为1进行计算的。

小刘_品职助教 · 2021年05月08日

同学你好,是的。

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