From: Effects of climate adaptation on technical efficiency of maize production in Northern Ghana
Variable | Model 1 | Model 2 | ||||
---|---|---|---|---|---|---|
Coef. | Std. Err. | P>z | Coef. | Std. Err. | P>z | |
Output model | ||||||
 Farm size | 0.650*** | 0.062 | 0.000 | 0.665*** | 0.063 | 0.000 |
 Hired labor | − 0.109*** | 0.026 | 0.000 | − 0.099*** | 0.026 | 0.000 |
 Family labor | 0.095** | 0.045 | 0.035 | 0.106** | 0.045 | 0.019 |
 Seed | 0.443*** | 0.055 | 0.000 | 0.451*** | 0.055 | 0.000 |
 Chemical | 0.189*** | 0.036 | 0.000 | 0.180*** | 0.035 | 0.000 |
 Fertilizer | − 0.004 | 0.032 | 0.901 | 0.006 | 0.031 | 0.837 |
 Adaptation |  |  | 0.195*** | 0.057 | 0.001 | |
 Constant | 3.841*** | 0.111 | 0.000 | 3.705*** | 0.115 | 0.000 |
Inefficiency model | ||||||
 Planting date | 26.722 | 1094.03 | 0.981 | 26.694 | 1023.44 | 0.979 |
 Early maturing variety | 0.578 | 0.596 | 0.332 | 0.281 | 0.73 | 0.7 |
 Drought resistant variety | 0.657 | 0.565 | 0.245 | 0.793 | 0.83 | 0.34 |
 Crop rotation | − 1.514** | 0.705 | 0.032 | − 4.781** | 2.458 | 0.052 |
 Land rotation | 0.457 | 0.56 | 0.414 | 0.244 | 0.813 | 0.764 |
 Mixed farming | 0.459 | 0.618 | 0.458 | 0.5 | 0.753 | 0.507 |
 Intercropping | 1.305** | 0.572 | 0.023 | 1.015 | 0.692 | 0.142 |
 Refilling | − 1.213** | 0.562 | 0.031 | − 1.913*** | 0.759 | 0.012 |
 CA | 1.298** | 0.576 | 0.024 | 0.687 | 0.77 | 0.372 |
 ISFM | 1.366** | 0.65 | 0.036 | 1.192 | 0.911 | 0.191 |
 Mulching | 1.195** | 0.614 | 0.052 | 1.641 | 0.792 | 0.038 |
 Row planting | − 1.489** | 0.633 | 0.019 | − 3.037*** | 0.977 | 0.002 |
 IPM | − 0.426 | 0.642 | 0.507 | − 1.798* | 1.099 | 0.102 |
 Contour farming | 0.12 | 0.664 | 0.856 | − 0.433 | 0.804 | 0.59 |
 Constant | − 30.56 | 1094.04 | 0.978 | − 28.92 | 1023.45 | 0.977 |
 sigma_v | 0.592 | 0.018 |  | 0.593 | 0.018 |  |
 RTS | 1.263 |  |  | 1.503 |  |  |