Drinkwater S and R Harris (1999). “Frontier 4.1: A Computer Program for Stochastic Frontier Production and Cost Function Estimation.” Economic Journal 109(456): 453-458.

Drinkwater S and R Harris (1999). “Frontier 4.1: A Computer Program for Stochastic Frontier Production and Cost Function Estimation.” Economic Journal 109(456): 453-458.

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