Stata

Overview Research reproducibility topic has been gaining momentum over the past decade. There have been many studies reporting inability to replicate published results and lack of necessary details in methods description.

Interaction with two binary variables In a regression model with interaction term, people tend to pay attention to only the coefficient of the interaction term. Let’s start with the simpliest situation: \(x_1\) and \(x_2\) are binary and coded 0/1.

Marginal effects in a linear model Stata’s margins command has been a powerful tool for many economists. It can calculate predicted means as well as predicted marginal effects. However, we do need to be careful when we use it when fixed effects are included.