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[Kidaya Ntoko]

I am getting this message , while trying to use (year>=2000)

xtpmg D.lnundf D.lnpol D.lngdp D.lnprimedu if year>=2000 ,lr(l.lnundf lnpol lngdp lnprim
> edu) ec(ec) replace pmg

initial values not feasible
r(1400);