SENSITIVITY ANALYSIS BASED ON INPUT-ORIENTED DEA-R

This paper suggests a method of finding super-efficiency scores and modification of input-oriented models for sensitivity analysis of decision making units. First, by using DEA-R (ratio-based DEA) models in the input orientation, the models of super-efficiency and also models of super-efficiency modification are suggested. Second, the worst-case scenarios are considered where the efficiency of the test DMU is deteriorating while the efficiencies of the other DMUs are improving. Then, by combining these two ideas, a model is suggested which increases the super-efficiency score and modifies the change ranges in order to preserve the performance class.

Keywords:

DEA , DEA-R , Sensitivity analysis