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A methodology for cross-evaluation in DEA

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This paper provides a new approach for cross-evaluation in DEA. An examination of the link between cross-evaluation and the DEA production possibility set reveals flaws in the current methodology for cross-evaluation. This is compounded by problematic cases permitted by the existing approaches for performing cross-evaluation without recourse to the full set of optimal weights for all DMUs. Our new approach is based on information on all weighting schemes for all DMUs. We show how this overcomes the existing problems. We also provide new tools for the identi…cation of maverick DMUs that make use of unrealisitic weighting schemes and introduce the concept of under-achieving DMUs.

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