Stata Panel Data ✦ Updated

Panel data, or longitudinal data, consists of repeated observations of the same entities—such as individuals, firms, or countries—over multiple time periods. In Stata, these datasets are typically analyzed using the xt suite of commands. 1. Data Preparation

Perform Hausman test hausman fixed

xtreg y x1 x2, re

Tests xttest0 hausman fe re

3.3 Descriptive Statistics

summarize gdp fdi trade gcf
xtsum gdp fdi trade gcf   // between and within variation

From wide to long: