A procedure for ranking efficient units in data envelopment analysis
Management Science
Hi-index | 0.98 |
One important issue in DEA which has been studied by many DEA researchers is the sensitivity of the results of an analysis to perturbations in the data. This paper develops a procedure for performing a sensitivity analysis of the inefficient decision making units (DMUs). The procedure yields an exact ''Necessary Change Region'' in which the efficiency score of a specific inefficient DMU changes to a defined efficiency score. In what follows, we identify a new frontier, and prove the efficiency score of each arbitrary unit on it which is defined as the efficiency score.