From 1983–2007, among the largest 3,000 US stocks, the top 25% captured all of market’s upside

Stick to the right facts rather than emotion to choose your winners Every year, fans fill out their brackets for March’s mad dash to the collegiate basketball championship, trying to predict winners. For fans that want an edge, ESPN has published the College Basketball Power Index (BPI), a measure of team strength that is meant to be the best predictor of performance. This is similar to the logical system that Las Vegas uses to set betting odds – and we know who usually ends up on the winning side of those. Even fans who fancy themselves die-hard statisticians can suffer…