Table 7.
Propensity score matching and IPWRA estimate of cowpea training.
| Panel A | Adoption (1/0) |
Yield (kg/Hectare) |
Cowpea income (GHS) |
|||
|---|---|---|---|---|---|---|
| ATT | Robust Std. Error | ATT | Robust Std. Error | ATT | Robust Std. Err. |
|
| IPWRA |
0.165** |
0.082 |
128.40** |
61.44 |
551.36** |
242.15 |
| Panel B | Adoption (1/0) | Yield (kg/Hectare) | Cowpea income (GHS) | |||
| ATT |
Bootstrap Std. Error |
ATT |
Bootstrap Std. Error |
ATT |
Bootstrap Std. Error |
|
| NNM | 0.165** | 0.077 | 174.86** | 87.66 | 410.30** | 206.18 |
| KNM | 0.121* | 0.073 | 175.92* | 97.26 | 445.22** | 213.42 |
Note: IPWRA is inverse probability weighted regression adjustment; NNM is nearest neighbor matching; and KNM is kernel matching. Exchange rate: US$1 = GHS5.37 (Bank of Ghana, 2019). **p < 0.05 and * p < 0.001.