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3
votes
0answers
66 views

Why is Weighted Least Squares necessary in fundamental factor model?

Why is Weighted Least Squares necessary in fundamental factor model while it is not in a standard Macroeconomic factor model? I understand that $\mathbb{E}[\epsilon^2_{it}]=\sigma_i^2$ varies across ...
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vote
0answers
65 views

Variable Selection with Kalman Filter

I'm trying to estimate factor loadings on portfolios over time for portfolios that are traded pretty frequently. I have a sense that several portfolios are loading on the Fama-French HML factor ...
0
votes
0answers
33 views

Can you use factor loadings to determine portfolio information?

Suppose that you have a portfolio whose composition is uncertain. If you regress the portfolio returns on known factors (e.g., Fama-French 3-factor), can you use the loadings to determine (in general) ...
0
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0answers
59 views

multi factor equity model exposures not as expected

I'm researching an equity multi factor model. It contains three factors, say A, B & C. The factors are weighted as such, ...