Xtset Stata Ucla. You have data from students within a school. Xtreg xtlogit xtpoisson etc.
Xtset The Stata command to run fixedrandom effecst is xtreg. Statas xtreg random effects model is just a matrix weighted average of the fixed-effects within and the between-effects. StataSession3 TarjeiHavnes 1ESOP and Department of Economics University of Oslo 2Research department Statistics Norway ECON4136UiO2012.
For this you will use the xtset command followed by the individual id and by the time id in that order.
You need to tell Stata which variable identifies the individuals and which variable identifies the points in time. Do-file or command window help xtset Help file xtset. Regardless of whether you think you have specified -xtset- Stata will remember the last such setting or complain if you have not -xtset-. Hi ALi A quick hack would be to combine your country and company variables into a countrycomp variable so you can uniquely identify observations with countrycomp and year.
