Sensitivity and Stability Radius in Data Envelopment Analysis
نویسندگان
چکیده
|||||||||||||||||||||||||||||||Abstract One important issue in DEA which has been studied by many DEA researchers is the sensitivity analysis of a speci c DMUo, the unit under evaluation. Moreover, we know that in most models of DEA, the best DMUs have the e ciency score of unity. In some realistic situations, the performance of some ine cient DMUs is similar to that of e cient ones. In this paper, we de ne a new e ciency category, namely ;quasi efficient;. Then, we develop a procedure for performing a sensitivity analysis of the e cient and quasi-e cient decision making units. The procedure yields an exact ;stability radius; within which data variations will not alter a DMU ;s classi cation from e cient or quasi-e cient to ine cient status (or vice versa).
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