Jondrow J, P Schmidt and is Materov (1982). “On the Estimation of Technical Inefficiency in the Stochastic Frontier Production Function Model.” J Econometrics 19: 233-238.

Jondrow J, P Schmidt and is Materov (1982). “On the Estimation of Technical Inefficiency in the Stochastic Frontier Production Function Model.” J Econometrics 19: 233-238.

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