Kumbhakar SC, S Ghosh and JT McGuckin (1991). “A Generalized Production Frontier Approach for Estimating Determinants of Inefficiency in United-States Dairy Farms.” J Business and Economic Statistics: 279-286.
Kumbhakar SC, S Ghosh and JT McGuckin (1991). “A Generalized Production Frontier Approach for Estimating Determinants of Inefficiency in United-States Dairy Farms.” J Business and Economic Statistics: 279-286.