Dear All,
Before I added 'vce(r)' option at the end of my xtreg, fe model I got standard error in the output. But after I add vce(r) OR vce(cluster clustvar) I do not get any standard errors in output.

Below is what I type.

Tks,
Billy

local treat " i.SA_compulsary i.sub_official_rep i.sub_off_recognized i.sub_showedID i.power i.who_decidesIncent_formig "
local migvars " mig_age mig_agesq i.MS i.country "
local expevars " i.mig_empSL "
local SAvars "i.sub_gender i.sub_age i.sub_pp i.sub_money "

foreach x of local treat {
eststo: xtreg lnw `migvars' `expevars' `SAvars' i.current `x', fe fvlabel vce(r)
estimates store FE
}