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carriesunmsf · 2025年06月24日

NO.2024021802000069

答案判断及提示不正确 factor risk allocation 和 MVO 都会对baseline assumption 进行调整
1 个答案

净净_品职助教 · 2025年06月24日

嗨,爱思考的PZer你好:


既然 MVO(均值-方差优化)也会因为 ESG 问题调整假设,那为什么答案不是它?

这个问题的关键在于理解题干中的限定词:"would most likely require new baseline risk assumptions"

也就是说,题目问的是 哪种资产配置模型最有可能需要对“基本的风险假设(baseline risk assumptions)”进行调整,特别是由于 ESG 问题。


A正确:Factor risk allocation

  • 因子风险分配模型的核心是识别并量化投资组合暴露在各种风险因子下(如价值因子、动量因子、规模因子等)。如果 ESG 被纳入考虑,往往意味着要引入新的 ESG 相关因子,如碳风险、治理风险、气候情景等。这类新的因子会直接改变原有的风险因子设定,从根本上调整 baseline risk assumption。比如,气候变化可能成为一个独立风险因子,而不是简单影响资产波动或相关性。

C错误:MVO 是基于资产的期望收益、波动率和相关性来做配置的模型。

  • ESG 的加入可能会影响这些输入参数(比如你对某资产的回报预期下调,因为它有污染风险)。但这更像是调整输入数据层面(input parameters),而不是重构模型的底层风险框架(baseline risk assumptions)。所以:ESG 会影响 MVO 的假设,但不是“最有可能需要更改 baseline 风险假设”的模型。


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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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