Efficiency Measures Using the Ray-Homothetic Function: A Multiperiod Analysis

The Technical Efficiency of Illinois Grain Farms: an Application of a Ray-homothetic Production Function

trend towards farm consolidation, it is also imThe purpose of this paper is to measure the portant to know if large farms are more techextent of technical inefficiency among a nically efficient than smaller ones. Finally, it sample of Illinois grain farms using the corshould be noted that the method developed rected ordinary least squares method. Instead here can be easily applied to farm data ...

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Coherent Acceptability Measures in Multiperiod Models

The framework of coherent risk measures has been introduced by Artzner et al. (1999) in a single-period setting. Here we investigate a similar framework in a multiperiod context. We add an axiom of dynamic consistency to the standard coherence axioms, and obtain a representation theorem in terms of collections of multiperiod probability measures that satisfy a certain product property. This the...

Cost Efficiency Measures In Data Envelopment Analysis With Nonhomogeneous DMUs

In the conventional data envelopment analysis (DEA), it is assumed that all decision making units (DMUs) using the same input and output measures, means that DMUs are homogeneous. In some settings, however, this usual assumption of DEA might be violated. A related problem is the problem of textit{missing} textit{data} where a DMU produces a certain output or consumes a certain input but the val...

Dynamic Efficiency Analysis using a Directional Distance Function