陈同学2021-10-15 05:04:34
老师,asset allocation 百题case 1 lower correlation with other assets class作为单一条件也许不足够做到diversifying, 但此做法也是没错的。答案说这个说法是least accurate, 我觉得非常牵强。
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Johnny2021-10-15 08:55:14
同学你好,就比如ABC三个资产大类,A和B之间的相关度低,B和C之间的相关度低,A和C之间的相关度低,这个就叫两两相关。每个资产两两相关度低还不够,还需要(A+B)与C的相关度低,(A+C)与B的相关度低,(B+C)与A的相关度低才行,也就是说资产大类的线性组合之间相关度要低。最正确的表述应该是For risk control purposes, an included asset class should not have extremely high expected correlations with other asset classes(两两相关) or with a linear combination of other asset classes(资产大类线性组合后也不能高度相关)
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