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Table 6 Determinants of intensity of adoption of improved rice varieties: Tobit model
| Pooled data (1) | Upland (2) | Lowland (3) | Irrigated (4) | |
|---|---|---|---|---|
| Variable | Coefficient | Coefficient | Coefficient | Coefficient |
| YIELD | 0.0001* (0.000) | 0.000 (0.000) | −0.0001 (0.000) | −0.000 (0.000) |
| SEACES | −0.185 (0.127) | −0.420** (0.203) | −0.333* (0.171) | −0.053 (0.055) |
| ACREDIT | −0.243* (0.144) | −0.022 (0.129) | −0.353* (0.183) | 0.084 (0.059) |
| AGE2 | 0.001** (0.000) | 0.001* (0.001) | 0.001* (0.001) | −0.000 (0.000) |
| RICINC | 0.179* (0.092) | 0.355*** (0.093) | 0.349** (0.116) | 0.100** (0.047) |
| HSIZE | 0.023 (0.015) | −0.012 (0.019) | 0.025 (0.021) | −0.005 (0.005) |
| GNR | 0.089 (0.152) | −0.189 (0.324) | 0.124 (0.196) | 0.048 (0.058) |
| EXCONT | −0.366** (0.152) | 0.315 (0.399) | −0.448** (0.227) | −0.015 (0.036) |
| NCRI | −1.379*** (0.229) | 0.709 (0.635) | −1.481*** (0.306) | −0.067 (0.181) |
| HOWN | 0.864*** (0.247) | 0.524 (0.347) | 0.747**(0.325) | - |
| MAIN | −0.033 (0.208) | 0.126 (0.214) | 0.092 (0.252) | 0.105 (0.179) |
| NTRAIN | −0.062 (0.039) | −0.012 (0.035) | −0.149* (0.081) | 0.007 (0.007) |
| OFFINC | −0.126 (0.213) | 0.294 (0.319) | −0.088 (0.269) | - |
| KANO | 0.372** (0.179) | 0.764 (0.529) | 1.068 (0.839) | - |
| NIGER | −0.626*** (0.175) | 0.508 (0.424) | - | 0.088 (0.128) |
| TRAINB | 0.349* (0.186) | 0.061 (0.290) | 0.718** (.297) | −0.037 (0.043) |
| AGE | −0.102*** (0.038) | −0.087* (0.049) | −0.120** (0.049) | 0.004 (0.018) |
| MEORG | 0.231* (0.129) | 0.132 (0.188) | 0.253 (0.177) | 0.062 (.038) |
| INOCRP | 0.338*** (0.077) | −0.156* (0.088) | 0.445*** (0.110) | 0.031 (0.034) |
| TORAREA | −0.021 (.033) | −0.015 (0.045) | −0.028 (0.045) | −0.103*** (0.013 |
| SEDIST | 0.017** (0.008) | 0.008 (0.011) | 0.028* (0.015) | 0.001 (0.002) |
| COSEED | 0.008*** (0.002) | 0.009*** (0.004) | 0.008*** (0.003) | −0.001 (0.002) |
| EDUB | −0.295** (0.118) | 0.093 (0.145) | −0.339** (0.148) | −0.020 (0.072) |
| FYEXP | 0.009 (0.008) | 0.016 (0.010) | −0.007 (0.008) | −0.003 (0.002) |
| CONSTANT | −3.834*** (1.383) | −2.655 (1.643) | −6.131 (1.841) | −0.448 (0.579) |
| /SIGMA | 0.948 (0.039) | 0.549 (0.046) | 1.118 (0.054) | 0.104 (0.008) |
| NUMBER OF OBSERVATION | 514.000 | 151.000 | 417.000 | 90.000 |
| LR CHI2 (24) | 279.060 | 72.640 | 226.340 | 91.090 |
| PROB > CHI2 | 0.000 | 0.000 | 0.000 | 0.000 |
| PSEUDO R2 | 0.204 | 0.239 | 0.203 | 0.058 |
| LOG LIKELIHOOD | −543.670 | −115.773 | −443.737 | −74.301 |
