Table 1 Definition of variables in ESF model and a prior expectation.
Variables | Definition | Expected sign |
|---|---|---|
Maize output | Measured in kilogram | ± |
Seed | Measured in kilogram | ± |
Fertilizer | Measured in kilogram | ± |
Pesticides | Measured in litres | ± |
Labours | Measured in Man-days | ± |
Farm size | Cultivated land occupied by maize in hectares | ± |
Age | Measured in years | ± |
Age2 | Square of age measured in years | ± |
Household size | The number of persons in a household (count) | ± |
Years of education | Number of years spent in school | ± |
Years of experience | Number of years in farming | ± |
Gender | 1 = if a farmer is male | ± |
Extension visit | 1 = if the farmer is visited by an extension agent | ± |
Access to credit | 1 = if the farmer has access to credit | ± |
Asset | Asset owned by the farmers in Naira | ± |