00402 a2200109 4500001001000000005001700010008004100027245011400068100001900182700002300201773006800224ART_1243320260410161906.0260409a 10aEstimating stochastic production and cost frontiers when technical and allocative inefficiency are correlated1 aSchmidt, Peter1 aLovell, Knox C. A.0 tJournal of econometricsg- Vol. 13, NÂș 1 (may. 1980)wREV11720