Determinants and measurement of crop diversification: a study in Wondo Genet, Southern Ethiopia

actif activo agriculteur agricultores agricultura de subsistencia agriculture de subsistance agroecosistemas agroecosystems assets commodity markets competencia imperfecta comportamiento humano comportement humain concurrence imparfaite decision making diversification ethiopia etiopia family labour farmers hogares households human behaviour imperfect competition living standards main d'oeuvre familiale mano de obra familiar niveau de vie nivel de vida petite exploitation agricole pobreza poverty riesgo risk risque sex sexe sexo small farms subsistence farming toma de decisiones