Appendix Declare the panel data
D-GMM2 model estimation results
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Clinical case study CBT for depression in a Puerto, Nhật ký kiến tập, Bankers Như
| D-GMM2 model estimation results
xtabond2 ln_pro inno rd cx ln_tech ln_lb ln_k , gmm( ln_tech ln_lb ln_k ln_pci fdi ) twostep Favoring space over speed. To switch, type or click on mata: mata set matafavor speed, perm. Warning: Two-step estimated covariance matrix of moments is singular. Using a generalized inverse to calculate optimal weighting matrix for two-step estimation. Difference-in-Sargan statistics may be negative. Dynamic panel-data estimation, two-step system GMM ------------------------------------------------------------------------------ Group variable: ma_thue Number of obs = 11729 Time variable : year Number of groups = 2352 Number of instruments = 62 Obs per group: min = 4 Wald chi2(6) = 516.11 avg = 4.99 Prob > chi2 = 0.000 max = 5 ------------------------------------------------------------------------------ ln_pro | Coef. Std. Err. z P>|z| [95% Conf. Interval] -------------+---------------------------------------------------------------- inno | 5.553958 .5738031 9.68 0.000 4.429324 6.678591 rd | 40.51612 4.070062 9.95 0.000 32.53894 48.49329 cx | 4.479633 .6393672 7.01 0.000 3.226496 5.732769 ln_tech | -.9841583 .0655323 -15.02 0.000 -1.112599 -.8557174 ln_lb | 1.169105 .1216734 9.61 0.000 .9306297 1.407581 ln_k | -.3532206 .0464461 -7.60 0.000 -.4442532 -.262188 _cons | -1.428698 .7124249 -2.01 0.045 -2.825025 -.0323713 ------------------------------------------------------------------------------ Warning: Uncorrected two-step standard errors are unreliable. Instruments for first differences equation GMM-type (missing=0, separate instruments for each period unless collapsed) L(1/.).(ln_tech ln_lb ln_k ln_pci fdi) Instruments for levels equation Standard _cons GMM-type (missing=0, separate instruments for each period unless collapsed) D.(ln_tech ln_lb ln_k ln_pci fdi) ------------------------------------------------------------------------------ Arellano-Bond test for AR(1) in first differences: z = -9.25 Pr > z = 0.000 Arellano-Bond test for AR(2) in first differences: z = 1.01 Pr > z = 0.314 ------------------------------------------------------------------------------ Sargan test of overid. restrictions: chi2(55) =5097.80 Prob > chi2 = 0.000 (Not robust, but not weakened by many instruments.) Hansen test of overid. restrictions: chi2(55) =1466.72 Prob > chi2 = 0.000 (Robust, but can be weakened by many instruments.) Difference-in-Hansen tests of exogeneity of instrument subsets: GMM instruments for levels Hansen test excluding group: chi2(38) =1281.05 Prob > chi2 = 0.000 Difference (null H = exogenous): chi2(17) = 185.67 Prob > chi2 = 0.000 tải về 29.37 Kb. Chia sẻ với bạn bè của bạn:
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