M. Soltanifar - Department of Mathematics‎, Semnan ‎Branch, ‎‎Islamic Azad University, Semnan, ‎Iran‎.

To proposing a voting model for groups with members of unequal power and proficiency, we present some models for rank ordering efficient candidates, by extending the ideas of some authors. Then, we propose a new methodology to rank the ranking models for the performance indices of only DEA efficient candidates based on a classical voting model. Also, an approach for combining the results obtained from the ranking models is presented.

Data Envelopment Analysis, Voting, Group decision support system, Ranking