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早睡早起快乐学习 · 2022年01月15日

A选项里的anomalies怎么理解呀?还有B选项的self-financing investment具体是什么意思呢?谢谢~

NO.PZ2018110601000021

问题如下:

Which of the following statement regarding factor-based asset allocation is least appropriate?

选项:

A.

Factors are typically based on market premiums and anomalies

B.

A common way to construct factors is self-financing investment.

C.

Factors are typically different from the fundamental or structural factors used in multi-factor models.

解释:

C is correct

考点:factor-based asset allocation

解析:Fama-French三因素模型是典型的factor-based asset allocation,既包含market premium,又包含size和book-to-market两个基本面因子(fundamental factors/ anomalies)。构建这些因子的方法是self-financing investment,或者称作zero dollar investment,例如:Size factor return=Small-cap stock return−Large-cap stock return。

No.PZ2018110601000021 (选择题)

来源: 品职出题

Which of the following statement regarding factor-based asset allocation is least appropriate?


您的回答A, 正确答案是: C


A

Factors are typically based on market premiums and anomalies

B

A common way to construct factors is self-financing investment.

C

正确

Factors are typically different from the fundamental or structural factors used in multi-factor models.


C is correct

考点:factor-based asset allocation

解析:Fama-French三因素模型是典型的factor-based asset allocation,既包含market premium,又包含size和book-to-market两个基本面因子(fundamental factors/ anomalies)。构建这些因子的方法是self-financing investment,或者称作zero dollar investment,例如:Size factor return=Small-cap stock return−Large-cap stock return。


1 个答案
已采纳答案

郭静_品职助教 · 2022年01月16日

嗨,从没放弃的小努力你好:


用解析中的Fama-French模型来解释,Fama-French的三个因子是market factor, size factor & value factor。

因为承担了市场风险,所以获得market risk相关的风险补偿,这样的factor是market factor,对应的风险补偿叫market premium。

size factor在这个模型中是small company returns-big company returns前面的系数。因为Fama-French发现,市值小的公司收益率往往比市值大的公司收益率高,也就是说收益与市值大小有关;如果市场有效,那么这种关系是不成立的,正因为存在异常anomalies,所以投资者可以将规模这个因素单独挑选出来进行投资,承担与size相关的风险来获得补偿,这就是size factor。value factor同理。

简而言之,anomalies市场异象在这里指的是size factor和value factor,是无法解释的但可以给投资者带来超额收益的因子。


self-financing investment,又叫zero (dollar) investment,通过买入和卖空等量资产而产生的净价值为零的投资组合。

例如,想要构建size factor,就可以short large-cap stock,拿到cash,再用这些钱去long small-cap stock,这两个头寸净价值为零同时剥离出了size这个风险因子。





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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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