First-year student Rohan Rajiv is blogging once a week about important lessons he is learning at Kellogg. Read more of his posts here. One of the nicest things about being in graduate management ...

This is the fourth in a series of lecture notes which, if tied together into a textbook, might be entitled “Practical Regression.” The purpose of the notes is to supplement the theoretical content of ...

This refers to any bias in a predictive model which is the result of the omission of variables that are relevant to the outcome. The omission of a relevant variable can, among other things, lead to ...