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. 2020 Sep 24;6(9):e05013. doi: 10.1016/j.heliyon.2020.e05013

Table A2.

Endogeneity Test.

Variable Total farm income Farm income per output
NAFCO 0.805∗∗∗ (0.084) 0.834∗∗∗(0.086)
Ln(age) -0.621∗ (0.276) -0.808∗∗∗ (0.283)
Mar 0.094 (0.188) 0.121 (0.192)
Gen 0.122 (0.254) 0.013 (0.260)
Edu 0.145∗ (0.080) 0.138∗ (0.082)
HS 0.090∗∗∗ (0.032) -0.078∗∗ (0.033)
Residual 1.624 (1.319) 1.864 (1.351)
Constant 7.061∗∗∗ (0.729) 7.034∗∗∗ (0.747)
F-stat 18.30∗∗∗ 23.76∗∗∗
R-square 0.253 0.306
RMSE 0.813 0.832
Obs. 386 386

Notes∗∗∗, ∗∗, ∗; are values statistically significant at 0.01, 0.05, and 0.1 levels, respectively. The standard errors are in parentheses. Note that the residual is not significant, indicating that endogeneity is not a problem.