A Passive Investing Movie
I highly recommend having a look at a 54-minute movie called Passive Investing . The discussions are mostly non-technical and fairly easy to follow. They even cover the lifestyle advantages of switching to passive investing. For more details about this movie see Canadian Couch Potato’s description . What prompted me to write a post about this movie is an issue that is more technical than the film itself. Canadian Couch Potato made the following remarks about the movie’s mention of the capital asset pricing model (CAPM) : “CAPM—which predicts the expected return of a security based on its beta —is still widely taught, but it doesn’t do a particularly good job of explaining returns in the real world. (The Fama-French three-factor model is a dramatic improvement.) So I’m surprised the film’s website describes CAPM as ‘the mathematical foundation of passive investing.’” He is right that the three-factor model is better at modeling past investment returns than CAPM. However, wha...