Improving the discriminating power of data envelopment analysis: Focus on globally efficient units

Improving the discriminating power of data envelopment analysis: Focus on globally efficient units

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Article ID: iaor20023530
Country: United Kingdom
Volume: 53
Issue: 3
Start Page Number: 314
End Page Number: 323
Publication Date: Mar 2002
Journal: Journal of the Operational Research Society
Authors:
Abstract:

We introduce in this paper the global efficiency approach as a means to improve the discriminating power of Data Envelopment Analysis (DEA). To discriminate further among the DEA efficient units, we deal only with the units that can maintain their efficiency score under common weighting structures. Then we proceed further to ranking the whole set of DEA efficient units. We compare the global efficiency approach with the multi-criteria DEA and the cross-efficiency approaches on the basis of characteristic numerical examples drawn from the literature.

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