Offers an alternative to Markowitz’s “Portfolio Selection”. Outlines the nuts and bolts of correlation between past and future performance, or between expected and actual returns. Explains ...

Regression to the mean is an important, yet commonly misunderstood, statistical law. Understanding regression to the mean is an essential mental model for successful investing.

For example, a model might estimate sales based on age and gender. A regression analysis yields an equation that expresses the relationship. See correlation. THIS DEFINITION IS FOR PERSONAL USE ONLY.

In this paper, we consider a robust approach to the ultrahigh dimensional variable screening under varying coefficient models. While the existing works focusing on the mean regression function, we ...