Sohrab Kordrostami - Department of mathematics, Islamic Azad university, Lahidjan-Iran
Alireza Amirteimoori - Department of mathematics, Islamic Azad university, Rasht-Iran

In this paper, an efficiency measure based on the weighted Russell graph measure is proposed. By using this efficiency measure, a new super-efficiency DEA model is proposed to overcome the in-feasibility problem of the existing methods. The approach is applied to 14 Iranian commercial bank branches and 15 US cities, respectively

Keywords: DEA, super-efficiency, Russell measure, in-feasibility