| Selection dependent variable: annual potato sales (kg) | Coefficient |
| Distance from home to nearest market (km) | −0.0072 (0.0308) |
| Farmer’s sex (Male = 1, female = 0) | 1.8884*** (0.6107) |
| Farmer’s non farm income (UGX) | −4.15e−06*** (1.45e−06) |
| Farmer’s potato marketing experience (years) | 0.0539 (0.0307) |
| Membership to a cooperative or group | 1.0889* (0.6653) |
| Transport cost for 100 Kg potato bag to market (UGX) | −0.0001 (0.0001) |
| Value of farming equipment owned (UGX) | 1.38e−07 (1.53e−06) |
| Availability of a village market | 0.1919 (0.4006) |
| Age of farmer (years) | −0.0106 (0.0189) |
| Household size | −0.0599 (0.0733) |
| Constant | 2.2133 (1.1292) |