# Talk:Fama–French three-factor model

WikiProject Economics (Rated Start-class, Mid-importance)
This article is within the scope of WikiProject Economics, a collaborative effort to improve the coverage of Economics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Start  This article has been rated as Start-Class on the project's quality scale.
Mid  This article has been rated as Mid-importance on the project's importance scale.

## Reference Needed

Many studies show that the majority of actively managed mutual funds underperform broad indexes is a bold statement ... does anyone have references to back this up? Phdb (talk) 16:01, 21 October 2009 (UTC)

## Explanation of factors missing

There is some explanation of the factors in the equation missing. What defines ${\displaystyle \alpha }$? As well some more examples of what a negative bs /bv means. 11:06, 10 December 2009 (CET) —Preceding unsigned comment added by 134.60.237.223 (talk)

## Removed sentence

I removed the following sentence:

"Intuitively, one would expect a portfolio of Big Caps to have a negative bs coefficient, a portfolio of value stocks to have a positive bv coefficient, etc."

The significance of these factors is an empirical puzzle without theoretical motivation. Intuitively, one would expect them both to be zero. —Preceding unsigned comment added by 85.227.166.42 (talk) 19:01, 16 March 2010 (UTC)