xtreg ln_export_total ln_gdpi ln_gdpj ln_popi ln_popj ln_dist language adjacency fta_1 fta_2 fta_3, robust fe
est store m1
xtreg ln_export_total ln_gdpi ln_gdpj ln_popi ln_popj ln_dist language adjacency fta_1 fta_2 fta_3 i.year, robust fe
est store m2
* Specifying a varlist can be convenient to limit the output table to only the essential
* coefficients. For example, we may want to control for the influence of dummy variables, but not
* report their estimated coefficients.