Iteractions sex and education categories, i.e.,

 MODEL: CON1= A_M_E1*WIN1*(SEX=M)*(EDUC=1) + ... + A_M_E4*WIN1*(SEX=M)*(EDUC=4)+
              A_F_A1*WIN1*(SEX=F)*(EDUC=2) + ... + A_F_A6*WIN1*(SEX=F)*(EDUC=4)

 Number of observations = 450  E'PZ*E = .165723E-32

                          Standard
 Parameter  Estimate        Error       t-statistic   P-value
 A_M_E1     .627352       .151298       4.14647       [.000]
 A_M_E2     .538699       .125954       4.27695       [.000]
 A_M_E3     .164579       .037568       4.38080       [.000]
 A_M_E4     .382637       .206410       1.85377       [.064]
 A_F_E1     .639687       .130175       4.91406       [.000]
 A_F_E2     .306632       .138739       2.21014       [.027]
 A_F_E3     .503084       .135568       3.71095       [.000]
 A_F_E4     .702838       .226755       3.09954       [.002]
 L          11.5832       3.61273       3.20623       [.001]

 Standard Errors computed from   heteroscedastic-consistent matrix 
 (Robust-White)

 Dependent variable: CON1
        Mean of dep. var. = 10.4913  Std. error of regression = 10.0293
   Std. dev. of dep. var. = 11.2115                 R-squared = .239116
 Sum of squared residuals = 44358.7        Adjusted R-squared = .225313
    Variance of residuals = 100.587             Durbin-Watson = 1.93131 [<.405]

HECKMAN CORRECTION		page 1/1