Data Envelopment Analysis (DEA) applications frequently involve nonsubstitutable inputs and nonsubstitutable outputs (that is, fixed proportion technologies). However, DEA theory requires substitutability. In this paper, we illustrate the consequences of nonsubstitutability on DEA efficiency...

In a recent article in Management Science, Savas [Savas, E. S. 1978. On equity in providing public services. Management Sci. 24 (8, April) 800-808.] discusses performance measures in the provision of public services, states that it is difficult, but not impossible, to develop measures for...

This paper describes a statistical method for estimating data envelopment analysis (DEA) score confidence intervals for individual organizations or other entities. This method applies statistical panel data analysis, which provides proven and powerful methodologies for diagnostic testing and for...

In recent years, performance measurement has become the focus of attention in a variety of public sector fields. Unfortunately, too little has been done to develop valid operational definitions of performance, or to identify the weaknesses and biases inherent m certain types of performance...

We describe a statistical method for estimating DEA score confidence intervals, and illustrate it with panel data of large US transit agencies from the years 2002-2006. The method applies statistical panel data analysis (PDA), which provides proven and powerful methodologies for diagnostic...