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YAO Monica · 2024年05月02日

为什么统计学模型是假设最少的?

NO.PZ2023040601000014

问题如下:

Lam tells Cheung: An advantage of statistical factor models is that they make minimal assumptions, and therefore, statistical factor model estimation lends itself to easier interpretation than macroeconomic and fundamental factor models.

Is Lam’s comment regarding statistical factor models correct?

选项:

A.

Yes

B.

No, because he is incorrect with respect to interpretation of the models’ results

C.

No, because he is incorrect with respect to the models’ assumptions

解释:

An advantage of statistical factor models is that they make minimal assumptions. However, the interpretation of statistical factors is generally more difficult than the interpretation of macroeconomic and fundamental factor models.

统计学模型,不是需要大量假设吗?

1 个答案
已采纳答案

品职助教_七七 · 2024年05月02日

嗨,努力学习的PZer你好:


statistical factor model是根据纯统计上的方法来建模,模型完全基于选择的数据和采用的统计方法,不需要另设前提假设,模型结果也没有经济意义上的解释,建出来是什么样子就是什么样子的。

故这个模型需要的假设最少。

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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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