Dual models of interval data envelopment analysis and its extension to interval data

Dual models of interval data envelopment analysis and its extension to interval data

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Article ID: iaor20023068
Country: Netherlands
Volume: 136
Issue: 1
Start Page Number: 32
End Page Number: 45
Publication Date: Jan 2002
Journal: European Journal of Operational Research
Authors: , ,
Abstract:

The purpose of this paper is to develop a new DEA with an interval efficiency. An original DEA model is to evaluate each DMU optimistically. There is another model called ‘Inverted DEA’ to evaluate each DMU pessimistically. But, there are no relations essentially between DEA and inverted DEA. Thus, we formulate a DEA model with an interval efficiency which consists of efficiencies obtained from the optimistic and pessimistic viewpoints. Thus, two end points can construct an interval efficiency. With the same idea, we deal with the interval inefficiency model which is inverse to interval efficiency. Finally, we extend the proposed DEA model to interval data and fuzzy data.

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