Repack — Stata Panel Data Exclusive

xtcd y x1 x2

webuse nlswork, clear // National Longitudinal Survey of Young Women xtset idcode year

Alternative to FE when errors follow random walk or for dynamic panels. stata panel data exclusive

Want a concise guide to estimating panel models in Stata? Here’s a focused walkthrough with code and tips for fixed-effects and random-effects estimation, model choice, and interpretation.

: If you include a set of mutually exclusive dummy variables that cover all possible groups along with a constant, Stata will drop one category to prevent the "dummy variable trap." The Solution xtcd y x1 x2 webuse nlswork, clear //

The random-effects model treats individual-specific effects as random draws from a distribution, assumed uncorrelated with regressors. This is more efficient but requires stronger assumptions.

(over 1,000 pages) that covers the theoretical background and practical application of every panel command. Primary Panel Data Models in Stata Pooled OLS : If you include a set of mutually

syntax in your regression to let Stata handle the base category automatically. xtreg depvar iv1 iv2 i.region, fe Use code with caution. Copied to clipboard 3. Comparative Models: Sub-group Analysis

Crucially, Stata's CRE implementation works for , thanks to Wooldridge's extension of Mundlak's original result.

xtunitroot llc y // Levin-Lin-Chu xtunitroot ips y // Im-Pesaran-Shin xtunitroot fisher y // Fisher-type