Table 5.
Drivers of adoption and intensity of adoption: Heckpoisson model.
| Selection equation | Intensity equation | |||||
|---|---|---|---|---|---|---|
| Variables | Coeff | Std. Err. | P > z | Coeff | Std. Err. | P > z |
| lnwages | −0.0002 | 0.0001 | 0.159 | 0.00004*** | 0.00001 | 0.006 |
| Migratory Status (Migrant) | −0.456*** | 0.153 | 0.003 | −0.275*** | 0.042 | 0.000 |
| lnschoolingyears | 0.044 | 0.069 | 0.523 | 0.044 | 0.069 | 0.523 |
| lnfarmsize | −0.030*** | 0.011 | 0.005 | −0.010*** | 0.003 | 0.003 |
| Gender (Male) | −0.136 | 0.146 | 0.352 | −0.072* | 0.043 | 0.093 |
| lnincome | 0.504*** | 0.171 | 0.003 | 0.286*** | 0.039 | 0.000 |
| Group membership (Yes) | 1.703*** | 0.219 | 0.000 | |||
| Extension access (Yes) | −0.173 | 0.162 | 0.284 | −0.327*** | 0.046 | 0.000 |
| Training (Yes) | 1.651*** | 0.200 | 0.000 | |||
| Have Radio | 1.418*** | 0.225 | 0.000 | −0.060 | 0.049 | 0.227 |
| Constant | −3.840*** | 1.213 | 0.002 | −0.799*** | 0.292 | 0.006 |
| athrho | 1.642*** | 0.582 | 0.005 | |||
| lnsigma | −4.231*** | 1.243 | 0.001 | |||
| rho | 0.928 | 0.081 | ||||
| sigma | 0.015 | 0.018 | ||||
| Wald test of indep. eqns. (rho = 0): chi2 (1) = 7.97 Prob > chi2 = 0.0047 | ||||||
Note: * and *** represent statistical significance at 10 % and 1 % levels, respectively.