@ARTICLE {BERKHOUT:2010, title = {Does heterogeneity in goals and preferences affect efficiency? A case study of farm households in northern Nigeria}, author = {Berkhout, E. and Schipper, R. A. and Kuyvenhoven, A. and Coulibaly, O. }, journal = {Agricultural Economics}, year = {2010}, volume = {41}, number = {3-4}, pages = {265--273}, note = {Published online}, url = {http://econpapers.repec.org/article/blaagecon/v_3a41_3ay_3a2010_3ai_3a3-4_3ap_3a265-273.htm}, }