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闫旭 · 2022年03月19日

CV越大代表风险越大?

NO.PZ2018062016000053

问题如下:

Given the table above, based on the coefficient of variation,which market is least risky?

选项:

A.

Hong Kong

B.

Australia

C.

Italy

解释:

B is correct. A market with lowest CV is the least risky one.

CV(Hong Kong)=20.28/9.2=2.20

CV(Australia)=19.2/10.3=1.86

CV(Italy)=14.72/6.5=2.26

这个概念不懂,标准差越大,则分散性越好,那不应该是CV越大风险越低么?

1 个答案

星星_品职助教 · 2022年03月20日

同学你好,

标准差代表风险,标准差越大代表风险越大。

分散性1)只有在多资产的组合中才会出现;2)并不用标准差来表达,而是相关系数。

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