Definition of Variables

Measurement

Expected Sign

Dependent Variables

Adoption of Row Planting (first hurdle)

Binary (Yes/No)

Proportion of land under Row Planting (second hurdle)

Continuous (Timad)

Independent Variables

Age of house head

Continuous (Years)

+/−

Sex of household head (Male = 1)

Binary (Male/Female)

+/−

Illiterate (Yes = 1)

Binary (Yes/No)

+/−

Farming experience

Continuous (Years)

+/−

Man equivalent

Continuous (No)

+/−

Farm size (Timad)

Continuous (Timad)

+/−

Vertisol (Yes = 1)

Binary (Yes/No)

Very fertile plot (Yes = 1)

Binary (Yes/No)

Number of plots

Continuous (No)

Tropical Livestock Unit (TLU)

Continuous (No)

+

Number of oxen

Continuous (No)

+/−

Log of Value of Communication Equipment

Continuous (Birr)

+

Log of Annual off-farm income

Continuous (Birr)

+/−

No of DA contacts per annum

Continuous (No)

+

Distance to DA

Continuous (Hours)

Distance to the nearest market

Continuous (Hours)

Trained row planting (Yes = 1)

Binary (Yes/No)

+

Access to credit (Yes = 1)

Binary (Yes/No)

+

No of information sources

Continuous (No)

+

Labour per Land (Days)

Continuous (Days)