Stata Panel Data Exclusive Extra Quality | FRESH ◎ |

For multi-way clustering (e.g., id + year):

The standard Hausman test often fails when model assumptions (like homoscedasticity) are violated. An exclusive and robust alternative is the , which includes group means of time-varying regressors in a random-effects model. To execute the Mundlak approach in Stata: stata panel data exclusive

Stata is widely regarded as an industry standard for panel data analysis For multi-way clustering (e