Research Article
Analyzing Potato Market Participation, Market Surplus, and Market Outlet Choice on Small Farm Household Level in Lemo District, Southern Ethiopia
Table 3
First-stage probit estimation after robust results of the determinants of potato market participation.
| Variable | Coefficient | Robust Stand error | Z | Marginal effect |
| Age of household head | −0.0045 | 0.0191 | −0.23 | −0.0003 | Education level of the household | 0.2795 | 0.0671 | 3.08 | 0.0203 | Sex of household head | −1.736 | 0.8457 | −2.65 | −0.1262 | Member of cooperative | 1.075 | 0.5814 | 2.43 | 0.0781 | Distance to the nearest market | −0.0251 | 0.0067 | −8.88 | −0.0018 | Adult equivalent | 0.0182 | 0.0809 | 0.22 | 0.0013 | Effect of remittances | 0.6966 | 0.4864 | 2.01 | 0.0506 | Total cropland size | −0.3492 | 0.4125 | −0.81 | −0.0254 | Own transportation facilities | 1.932 | 0.6873 | 2.72 | 0.1405 | Oxen owned by a farmer (oxen) | −0.0363 | −0.3396 | −0.11 | −0.0026 | Types of seed they used | 1.327 | 0.3852 | 3.91 | 0.0965 | Frequency of extension contact | 0.6419 | 0.4012 | 2.26 | 0.0467 | Lagged market price | 1.474 | 0.5466 | 2.37 | 0.1071 | Amount of credit used | 0.0117 | 0.0002 | 3.92 | 0.0008 | Constant | −2.791 | 0.7650 | −3.65 | | Number of observations | | | 202 | | Wald chi2 (13) | | | 158.10 | |
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Note.∗∗∗, ∗∗, and ∗ show statistically significant level at 1, 5, and 10%, respectively. |