Rao, Elizaphan J. O.; Brümmer, Bernhard; Qaim, Matin - In: American Journal of Agricultural Economics 94 (2012) 4, pp. 891-912
Supermarkets are gaining ground in agrifood systems of many developing countries. While recent research has analyzed income effects in the small farm sector, impacts on productivity and efficiency have hardly been studied. We use a meta-frontier approach and combine this with propensity score...