Stata Panel Data Page

xtreg ln_wage hours age tenure, fe

Panel data often has serial correlation (today's error is correlated with yesterday's). stata panel data

If your model includes a lagged dependent variable (e.g., last year's GDP affecting this year's GDP), standard OLS and FE models become biased. Difference and System GMM: or the community-contributed xtreg ln_wage hours age tenure, fe Panel data