Farm size and productivity in Ethiopian smallholder agriculture

agriculteur agricultores agricultura de subsistencia agriculture de subsistance aptitude des terres costos costs credit credito econometric models economic viability encuestas sobre explotaciones ethiopia etiopia explotaciones privadas farm inputs farm results farm size farm surveys farmers insumos agricolas land suitability landowners metayage moyen de production agricole petite exploitation agricole private farms propietarios rurales small farms subsistence farming taille de l'exploitation agricole