options memory=10;
name ramey "GOV92.TSP: runs some of the fixed effects regressions";
smpl 1 2208;
in panel92;
smpl 1 2208;
regopt(pvprint) t;
dummy cntry;
d74 = 0;
tper=0;
select year>1973; d74 = 1;
trend(period=12) tper;
smpl 1 2208;
t = year - 1961;
tsq = t**2;
dummy t;

dot 1-92;
 select cntry.=1;
 olsq dlg c lgov1 lgov2 ly1 ly2 d74 t tper tsq; varg = @res**2;
enddot;

smpl 1 2208;

arch(relax,maxit=400,mean,gt=( varg),hiter=b,hcov=b) 
 dy c cntry1-cntry91 t1-t23; 

stop; end;