Medhin, Haileselassie A.; Köhlin, Gunnar - Nationalekonomiska institutionen, Handelshögskolan - 2009
This study adopts the stochastic metafrontier approach to investigate the role of soil conservation in small-scale highland agriculture in Ethiopia. Plot-level stochastic frontiers and metafrontier technology-gap ratios were estimated for three soil-conservation technology groups and a group of...