For example, to estimate a fixed effects model:
Once this command is successfully executed, Stata recognizes the dataset as a panel, enabling the use of the xt suite of commands. Descriptive Statistics for Panel Data stata panel data
This guide provides a comprehensive overview of managing and analyzing (longitudinal data) in Stata, from data setup to advanced model selection. 1. Understanding Panel Data For example, to estimate a fixed effects model:
If experience barely changes for any worker, FE estimates will be imprecise. Check within variation via xtsum . Understanding Panel Data If experience barely changes for
A critical step in panel data analysis is deciding whether to use a Fixed Effects or a Random Effects model. Econometricians typically use the Hausman test to make this decision.
use union_panel.dta xtset id year xtsum wage union experience
| Method | Stata Command | Use Case | |--------|--------------|----------| | Dynamic panel (GMM) | xtabond2 (external) | Lagged dependent variable | | Panel IV | xtivreg | Endogenous regressors | | Driscoll-Kraay SEs | xtscc | Cross-sectional dependence | | Panel quantile regression | xtqreg | Heterogeneous effects | | Fixed effects logit | xtlogit, fe | Binary outcome |