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hyi725 · 2022年03月24日

为什么a不对呢

NO.PZ2021101401000017

问题如下:

Galic, who is 62 years old, decides to allocate C$2 million (representing 10% of his net worth) to an account with GWP and stipulates that portfolio assets be restricted exclusively to domestic securities. Although GWP has not backtested its strategies with such a restriction, it has backtested its strategies using a global index that includes domestic securities. Rom shows the following risk measures to Galic for three factor portfolios.


Which of the following conclusions of Exhibit 1 is least likely to be true?

选项:

A.

5% of the time, losses from Factor 1 would be at least 6.49%.

B.

When the VaR is exceeded in Factor 1, we should expect an average loss of 15.73%.

C.

5% of the time, losses from Factor 2 are likely to be worse than losses from Factor 1.

解释:

C is correct. The VaR metrics in Exhibit 1 show that 5% of the time, losses will be at least 6.49% and 0.77%, respectively, for Factor 1 and Factor 2. The CVaR metrics in Exhibit 1 show that the weighted average of all loss outcomes that exceed the VaR loss are 15.73% and 4.21% for Factor 1 and Factor 2, respectively. Thus, A is true because it correctly defines VaR, and B is true because it correctly defines CVaR, whereas C is untrue because both VaR and CVaR are lower for Factor 2 than Factor 1.

乍一看a好像也还好,是以为表述不够完整吗


1 个答案

星星_品职助教 · 2022年03月25日

同学你好,

选项A的描述是正确的。本题要选的是“ least likely to be true”的,所以不能选。

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