189****93572022-10-25 12:18:00
我记得Treynor ratio是在组合里讲到的,这个东西不是衡量对称性回报的吗。但是另类投资的回报是左偏的。为什么Treynor ratio也可以衡量呢。
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Chris Lan2022-10-25 21:34:16
同学您好
这里A选项表述的是The Treynor ratio uses beta as a risk measure.
他说Treynor可以用来衡量系统性风险,这是对的。这里并没有说Terynor ratio适合评估另类投资。
从以下的原文来看,Treynor ratio可以用来评估另类投资。但是会存在一些讲义中讲的缺陷。
Alternative assets are generally deemed more valuable when they have a lower beta to traditional assets, and this is where the Treynor ratio proves useful: It is a measure of the excess average return of an investment relative to its beta to a relevant benchmark, such as a broad equity index.
这些缺陷是:
based on historical beta data that may change in the future. 基于历史测试数据,未来可能会发生变化
becomes less meaningful if the beta of the alternative asset to its systematic benchmark is negative. 如果另类资产对其系统基准的贝塔系数为负,则意义不大
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