珊同學(xué)
2022-06-09 20:26在AA 原版書(shū)中 有這么一段話:Pairwise asset class correlations are often useful information and are readily obtained. However, in evaluating an investment’s value as a diversifier at the portfolio level, it is important to consider an asset in relation to all other assets as a group rather than in a one-by-one (pairwise) fashion. It is possible to reach limited or incorrect conclusions by solely considering pairwise correlations. 該怎么理解呢?
所屬:CFA Level III > Asset Allocation and Related Decisions in Portfolio Management 視頻位置 相關(guān)試題
來(lái)源: 視頻位置 相關(guān)試題
1個(gè)回答
Johnny助教
2022-06-10 10:00
該回答已被題主采納
同學(xué)你好,可以回聽(tīng)一下參考群內(nèi)資產(chǎn)配置的第一場(chǎng)example,里面有講到這一點(diǎn)。資產(chǎn)大類間的需要分散化,但是僅僅做到兩兩之間的相關(guān)度低是不夠,還需要做到資產(chǎn)大類線性組合的相關(guān)度也要低才行。比如有三個(gè)資產(chǎn)大類ABC,A和B的相關(guān)度低,B和C的相關(guān)度低,A和C的相關(guān)度低,這個(gè)叫l(wèi)ow pairwise correlation,但是還不夠,需要A和(B+C)的相關(guān)度低,C和(A+B)的相關(guān)度低,B和(A+C)的相關(guān)度低,這樣才更充分。
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