Assessing the relative efficiency of decision making units using DEA models with weight restrictions

Victor V. Podinovski, Antreas D. Athanassopoulos

1998-05-01articleJournal of the Operational Research Society60 citationsclosed

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Efficiency Analysis Using DEA Multi-Criteria Decision Making Optimization and Mathematical Programming

Abstract

In models of data envelopment analysis (DEA), an optimal set of input and output weights is generally assumed to represent the assessed decision making unit (DMU) in the best light in comparison to all the other DMUs. The paper shows that this may not be correct if absolute weight bounds or some other weight restrictions are added to the model. A consequence may be that the model will underestimate the relative efficiency of DMUs. The incorporation of weight restrictions in a maximin DEA model is suggested. This model can be further converted to more operational forms, which are similar to the classical DEA models.

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References

1978Measuring the efficiency of decision making units

1990Polyhedral Cone-Ratio DEA Models with an illustrative application to large commercial banks

1989Cone ratio data envelopment analysis and multi-objective programming

1991Controlling Factor Weights in Data Envelopment Analysis

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