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2024-02-14 12:52老師,當(dāng)資產(chǎn)配置達(dá)到最優(yōu)的時(shí)候,應(yīng)該是same MCTR for all assets,還是same ratio of excess return to MCTR for all assets呢?
所屬:CFA Level III > Asset Allocation and Related Decisions in Portfolio Management 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個(gè)回答
Johnny助教
2024-02-14 13:20
該回答已被題主采納
同學(xué)你好,如果是optimal risk budgeting的話,那么是所有資產(chǎn)的(Ri-Rf)/MCTRi都相等
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追問
謝謝老師。明白一半,即做最優(yōu)風(fēng)險(xiǎn)預(yù)算(這個(gè)過程)的時(shí)候,是same return to MCTR for all assets。那么,想確認(rèn)一下我如上問題的另一半是,什么時(shí)候需要same MCTR for all assets呢?課上有句key sentence是這么說的“An asset allocation is optimal when the ratio of excess return (over the risk-free rate) to MCTR is the same for all assets and matches the Sharpe ratio of the tangency portfolio.”。
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追答
同學(xué)你好,不需要所有資產(chǎn)的MCTR都相同,沒有考慮過這個(gè)情況。正如Key sentence說了,所有資產(chǎn)的(Ri-Rf)/MCTRi相同時(shí),組合在風(fēng)險(xiǎn)預(yù)算層面達(dá)到最優(yōu),而且(Ri-Rf)/MCTRi會(huì)等于tangency portfolio的SR,這里并沒有提到所有資產(chǎn)的MCTRi都相等
