This presentation provides an overview of the subset of methods for panel data and the associated Stata xt commands most commonly used by microeconometricians. First, attention is focused on a short panel, meaning data on many individual units and few time periods. Examples include longitudinal...

This talk considers robust inference for regression models where data are clustered, with correlation of observations in the same cluster (such as state) and independence across clusters. The talk will range from the simplest case of heteroskedastic-ro bust (one individual per cluster) through...

This talk will overview how to estimate nonlinear regression models that are not covered by Stata's many built-in estimation commands. Mata command optimize will be emphasized, and Stata command ml will also be covered. The material is drawn from chapter 11 of A.C. Cameron and P.K. Trivedi...

In this talk, I will cover a number of topics related to the estimation of panel models for count data, with empirical illustrations estimated using Stata. For the theoretical background, I will rely on my book with Colin Cameron, Microeconometrics: Methods and Applications (2005, Cambridge...