Table 5 Coefficients of propensity score (standard errors in parentheses)
Explanatory variables | Biogas adoption | |
|---|---|---|
Coefficient | P value | |
Age | 0.12 (0.07) | 0.07 |
Dummy male | − 0.357 (0.212) | 0.09 |
Family size | 0.065 (0.043) | 0.12 |
Education | 0.046 (0.029) | 0.1 |
Cattle holding | − 0.02 (0.026) | 0.39 |
Annual income | 0.000026 (7.9e-06) | 0.001 |
Distance between home and firewood collection site | 0.00074 (0.00047) | 0.1 |
Distance between home and watering point | − 0.0017 (0.0014) | 0.2 |
Distance between home and nearest market | −0.008 (0.006) | 0.22 |
Availability of electricity | 0.71 (0.199) | 0.000 |
Farm size | − 0.08 (0.12) | 0.5 |
Medium fertility of soil | 0.07 (0.16) | 0.6 |
Poor fertility of soil | − 0.378 (0.168) | 0.02 |
Farm location | 2.27 (0.57) | 0.000 |
Zero grazing | 1.09 (0.46) | 0.01 |
Extension service | 0.006 (0.008) | 0.44 |
Constant | − 7.78 (1.68) | 0.000 |
Obs. = 400 | LR chi2 (12) = 71.36 | Prob>chi2 = 0.000 likelihood = − 241.58 |