Table 6 GMM regressions (and OLS regressions for comparison) for the structural equation model (SEM) which includes the degree of stunting h and the weighted fractional rank deviation d as endogenous variables
h | d | |||||||
|---|---|---|---|---|---|---|---|---|
GMM | OLS | GMM | OLS | |||||
Coefficient | t-stat | Coefficient | t-stat | Coefficient | t-stat | Coefficient | t-stat | |
Constant | 0.1187 | 13.52 ∗∗∗ | 0.1240 | 15.32 ∗∗∗ | -0.1700 | -16.01 ∗∗∗ | -0.1493 | -26.15 ∗∗∗ |
Age of child | 0.0017 | 11.18 ∗∗∗ | 0.0016 | 11.13 ∗∗∗ | − | − | − | − |
Squared age of child | -0.0001 | -13.48 ∗∗∗ | -0.0001 | -13.55 ∗∗∗ | − | − | − | − |
Sex of child | 0.0143 | 2.41 ∗ | 0.0138 | 2.34 ∗ | − | − | − | − |
Residence type | − | − | − | − | 0.2502 | 22.55 ∗∗∗ | 0.2457 | 21.94 ∗∗∗ |
Education of mother | -0.0022 | -1.81 ◇ | -0.0033 | -3.36 ∗∗∗ | 0.0108 | 8.01 ∗∗∗ | 0.0102 | 7.80 ∗∗∗ |
Education of partner/husband | -0.0014 | -1.27 | -0.0024 | -2.63 ∗∗∗ | 0.0148 | 13.37 ∗∗∗ | 0.0144 | 13.21 ∗∗∗ |
Safe drinking water | − | − | − | − | 0.1288 | 17.96 ∗∗∗ | 0.1296 | 18.23 ∗∗∗ |
Satisfactory sanitation | − | − | − | − | 0.1132 | 12.17 ∗∗∗ | 0.1108 | 11.97 ∗∗∗ |
d | -0.0987 | -3.46 ∗∗∗ | -0.0559 | -4.67 ∗∗∗ | − | − | − | − |
h | − | − | − | − | 0.0826 | 1.25 | -0.0621 | -3.73 ∗∗∗ |
R 2 | 0.0767 | 0.0796 | 0.3895 | 0.3996 | ||||
N | 9262 | 9262 | 9262 | 9262 | ||||
J | 0.42 | − | 2.69 | − | ||||
Cragg-Donald F | 917.43 ∗∗∗ | − | 194.31 ∗∗∗ | − | ||||