Hi, I was wondering how to use fixed effects for propensity score matching. Is this the right code? ods graphics on; proc psmatch data=merged2 region=cs; class FE2_S_1 GENDER urban; strata provcd; psmodel FE2_S_1(Treated='1') = provcd urban AGE_MAX AGE_MIN indinc_net total_asset familysize GENDER QC1 QE1_BEST QG3 QK601 QM401 QP3; match method=optimal(k=1) exact=GENDER distance=lps caliper=0.01; assess ps var=(provcd urban AGE_MAX AGE_MIN indinc_net total_asset familysize GENDER QC1 QE1_BEST QG3 QK601 QM401 QP3)/ plots=all weight=none; output out(obs=match)=OutEx1 matchid=_MatchID; run; "provcd" is the location provincial fixed effect that needs to be controlled.
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