[George Ford]

I got this to run.

Error messages on twostep estimator unavailable, so this is onestep.

xtendothresdpd LnPer L.LnPer TRADE FDI , thresv(DEBT ) stub(enr) pivar( DEBT ) dgmmiv( LnPer ) vce(robust) grid(10)

[Afrifa King]

wow. let me try it