Input congestion occurs at a given input bundle when the assumption of free disposability of inputs does not hold and an increase in input leads to a decline in output. In this paper we employ the nonparametric method of Data Envelopment Analysis (DEA) to examine the question on input congestion...

Using the directional distance function we study a cross section of 110 countries to examine the efficiency of management of the tradeoffs between pollution and income. The DEA model is reformulated to permit 'reverse disposability' of the bad output. Further, we interpret the optimal solution...

This dissertation examines the productivity growth, scale efficiency, size efficiency, and the efficiency dynamics of large U.S. commercial banks between 1984 to 1990, using the nonparametric method of Data Envelopment Analysis and statistical and econometric tools. We measure productivity...