Hi,

I am using heckman in stata for below specification, I want to check multicollinearity and VIF, is there a way?


heckman psf ltd rmshi bed ada reca B2B msh fse revtg1 irevtvol ms mg1 id2-id55 yd2-yd18 , select(ld = roa2 fse sgaxa dltts id2-id55 yd2-yd18) twostep