Table 6 Quartile DiD and CiC estimates of seed system intervention effects on seed system outcomes (ZIMBABWE)
| Â | Quartile regression estimates | ||||
|---|---|---|---|---|---|
0.1 | 0.25 | 0.50 | 0.75 | 0.9 | |
Change in Change | |||||
 Access to seed | − 0.007 (0.011) | − 0.005 (0.008) | 0.001 (0.369) | 0.962*** (0.036) | 0.861*** (0.045) |
 Log distance (km) | − 1.749** (0.700) | − 0.777*** (0.255) | − 0.541** (0.249) | − 0.037 (0.406) | 0.097 (0.336) |
 Seed market participation (paid for seed used) | 0.434 (0.369) | − 0.012 (0.037) | − 0.066 (0.050) | − 0.082 (0.078) | − 0.166 (0.102) |
 Variety turnover | − 4,176* (2.277) | − 1.168 (1.791) | 1.930 (3.431) | 3.431 (2.793) | 12.149* (6.932) |
Qquartile Difference In Difference | |||||
 Access to seed | 0.013 (0.013) | 0.009 (0.009) | 0.012 (0.368) | 0.973*** (0.018) | 0.033 (0.331) |
 Log distance (km) | − 1.686** (0.677) | − 0.564** (0.224) | − 0.384 (0.279) | − 0.230 (0.357) | 0.151 (0.215) |
 Seed market participation (paid for seed used) | − 0.021 (− 0.254) | 0.218** (0.112) | − 0.050 (0.055) | − 0.073 (0.059) | − 0.325** (0.128) |
 Variety turnover | − 7.325** (3.007) | − 0.695*** (2.299) | − 3.741* (2.038) | − 1.486 (2.978) | 12.061*** (3.515) |