| Article ID: | iaor20003847 |
| Country: | Netherlands |
| Volume: | 14 |
| Issue: | 2 |
| Start Page Number: | 261 |
| End Page Number: | 266 |
| Publication Date: | Sep 1999 |
| Journal: | Computational Optimization and Applications |
| Authors: | Alirezaee Mohammad R., Mehrabian Saeid, Jahanshahloo Gholam R. |
| Keywords: | decision: studies, decision theory |
The efficiency measures provided by DEA can be used for ranking Decision Making Units (DMUs), however, this ranking procedure does not yield relative rankings for those units with 100% efficiency. Andersen and Petersen have proposed a modified efficiency measure for efficient units which can be used for ranking, but this ranking breaks down in some cases, and can be unstable when one of the DMUs has a relatively small value for some of its inputs. This paper proposes an alternative efficiency measure, based on a different optimization problem that removes the difficulties.