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. 2020 May 15;86(6):2607–2638. doi: 10.1007/s10708-020-10215-2

Table 3.

Results of POLS, fixed and random effects, and system GMM

VARIABLES POLS POLS FE FE RE RE GMM GMM
(1) (2) (3) (4) (5) (6) (7) (8)
lnGini  − 0.248*  − 0.264**  − 0.234*  − 0.360***  − 0.248*  − 0.264**  − 0.0806**  − 0.373**
(0.131) (0.131) (0.138) (0.139) (0.131) (0.131) (0.0409) (0.185)
lnlag1TFP 0.475*** 0.457*** 0.461*** 0.433*** 0.475*** 0.457*** 0.781*** 0.681***
(0.0272) (0.0274) (0.0281) (0.0283) (0.0272) (0.0274) (0.0511) (0.0608)
lnTrade 0.0310** 0.0507*** 0.0310** 0.0973***
(0.0122) (0.0177) (0.0122) (0.0364)
lnHIV/AIDS  − 0.0282  − 0.0327  − 0.0282  − 0.205***
(0.0179) (0.0203) (0.0179) (0.0501)
lnEDUCAT 0.0474*** 0.127*** 0.0474*** 0.0864**
(0.0180) (0.0294) (0.0180) (0.0407)
Constant  − 0.0767  − 0.378**  − 0.0690  − 0.988***  − 0.0767  − 0.378**
(0.0680) (0.186) (0.0716) (0.262) (0.0680) (0.186)
Observations 1092 1092 1092 1092 1092 1092 1092 1092
R-squared 0.219 0.232 0.206 0.229 0.219 0.232
Hausman test (χ2) 17.24***
[0.004]
Wald χ2 243.69 281.57
AR(1)  − 10.61  − 9.34
AR(2) 1.58 1.08
Sargan statistic 140.38*** 131.2***
[0.000] [0.000]

Standard errors in parentheses, ***p < 0.01, **p < 0.05, *p < 0.1

The Hausman test is performed for regression (4) and (6). H0: RE is appropriate

P-values in []