Kumbhakar, Subal C.; Tsionas, Efthymios G. - In: Agricultural Economics 38 (2008) 1, pp. 99-108
Technical inefficiency can be modeled as either input-oriented (IO) or output-oriented (OO). However, in the estimation of parametric stochastic production frontier models which use maximum likelihood method only the OO measure is used. In this article we consider a simple nonhomogeneous...