. xtabond2 cred_prom L.cred_prom T desempleo liva siga sucursal, noleveleq gmm(L.cred_prom) iv(T desempleo liva siga sucursal) Favoring speed over space. To switch, type or click on mata: mata set matafavor space, perm. Warning: Number of instruments may be large relative to number of observations. Dynamic panel-data estimation, one-step difference GMM Group variable: id Time variable : edate Number of instruments = 229 Wald chi2(6) = 2.39 Prob > chi2 = 0.881 Number of obs Number of groups Obs per group: min avg max Std. Err. z P>|z| = = = = = 286 11 26 26.00 26 cred_promedio Coef. [95% Conf. Interval] cred_promedio L1. .0179243 .0594901 0.30 0.763 -.0986742 .1345228 T desempleo liva siga sucursal -680.3002 96049.88 -13496.18 352.7603 11211.75 8383.466 152029.1 14816.14 675.8667 13643.47 -0.08 0.63 -0.91 0.52 0.82 0.935 0.528 0.362 0.602 0.411 -17111.59 -201921.7 -42535.28 -971.9141 -15528.97 15750.99 394021.4 15542.92 1677.435 37952.46 Instruments for first differences equation Standard D.(T desempleo liva siga sucursal) GMM-type (missing=0, separate instruments for each period unless collapsed) L(1/.).L.cred_promedio Arellano-Bond test for AR(1) in first differences: z = -11.72 Arellano-Bond test for AR(2) in first differences: z = 0.04 Pr > z = Pr > z = 0.000 0.965 Prob > chi2 = 0.007 Difference-in-Sargan tests of exogeneity of instrument subsets: iv(T desempleo liva siga sucursal) Sargan test excluding group: chi2(218) = 272.75 Prob > chi2 = Difference (null H = exogenous): chi2(5) = 5.55 Prob > chi2 = 0.007 0.353 Sargan test of overid. restrictions: chi2(223) = 278.30 (Not robust, but not weakened by many instruments.) . outreg2 using cred_prom, see word title("Variable dependiente: desembolsos por operaciones de crédito") ctitle(A-B) . xtabond2 desembolsos L.desembolsos T sucursal desempleo liva siga, noleveleq gmm(L.desembolsos) iv(T sucursal desempleo liva siga > ) Favoring speed over space. To switch, type or click on mata: mata set matafavor space, perm. T dropped due to collinearity sucursal dropped due to collinearity desempleo dropped due to collinearity liva dropped due to collinearity Warning: Number of instruments may be large relative to number of observations. Dynamic panel-data estimation, one-step difference GMM Group variable: id Time variable : edate Number of instruments = 229 Wald chi2(2) = 32.99 Prob > chi2 = 0.000 Number of obs Number of groups Obs per group: min avg max Std. Err. z P>|z| = = = = = 286 11 26 26.00 26 desembolsos Coef. [95% Conf. Interval] desembolsos L1. .293236 .0560878 5.23 0.000 .183306 .403166 siga 20728.45 10648.17 1.95 0.052 -141.5823 41598.48 Instruments for first differences equation Standard D.(T sucursal desempleo liva siga) GMM-type (missing=0, separate instruments for each period unless collapsed) L(1/.).L.desembolsos Arellano-Bond test for AR(1) in first differences: z = Arellano-Bond test for AR(2) in first differences: z = Sargan test of overid. restrictions: chi2(227) = 287.71 (Not robust, but not weakened by many instruments.) -8.81 -1.21 Pr > z = Pr > z = 0.000 0.227 Prob > chi2 = 0.004 Difference-in-Sargan tests of exogeneity of instrument subsets: gmm(L.desembolsos, lag(1 .)) Sargan test excluding group: chi2(3) = 1.31 Prob > Difference (null H = exogenous): chi2(224) = 286.40 Prob > iv(T sucursal desempleo liva siga) Sargan test excluding group: chi2(222) = 286.67 Prob > Difference (null H = exogenous): chi2(5) = 1.03 Prob > chi2 = chi2 = 0.727 0.003 chi2 = chi2 = 0.002 0.960