Battese, George E.; Malik, Sohail J.; Broca, Sumiter - In: The Pakistan Development Review 32 (1993) 3, pp. 233-268
Two models of technical inefficiency with a stochastic production frontier are considered in this paper. In the first model, it is assumed that the frontier itself does not vary with time, while in the second, the frontier is allowed to move. These models are applied to four years of panel data...