ivregress 2sls yedu (ln_fincome1_per = cunshouru ) yfyedu gender2 age2 age3 fage2 fage3 mage2 mage3 familysizee2 expenditure if qa301_a14_p==1&qa301_a14_s==1&qa301_a14_c1==1, r first


ivregress 2sls yedu (ln_fincome1_per  = cunshouru ) yfyedu  gender2 age2 age3 fage2 fage3 mage2 mage3 familysizee2 expenditure if (outpers_where14_s==1|outpers_where14_s==2|outpers_where14_s==3)|(outpers_where14_p==1|outpers_where14_p==2|outpers_where14_p==3)&(qa301_a14_p==1&qa301_a14_s==1&qa301_a14_c1==1), r first