Cone dominance and efficiency in data envelopment analysis

Cone dominance and efficiency in data envelopment analysis

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Article ID: iaor20072115
Country: Germany
Volume: 145
Issue: 1
Start Page Number: 89
End Page Number: 103
Publication Date: Jul 2006
Journal: Annals of Operations Research
Authors: , ,
Abstract:

This paper incorporates cones on virtual multipliers of inputs and outputs into DEA analysis. Cone DEA models are developed to generalize the dual of the BCC models as well as congestion models. Input–output data and/or numbers of DMUs for BCC models are inadequate to capture many aspects where judgments, expert opinions, and other external information should be taken into analysis. Cone DEA models, on the other hand, offer improved definitions of efficiency over general cone and polyhedral cone structures. The relationships between cone models and BCC models as well as those between cone models and congestion models are discussed in the development. Two numerical examples are provided to illustrate our findings.

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