Russell-graph measure and super efficiency in data envelopment analysis
by Alireza Amirteimoori; Sohrab Kordrostami; Leila Khoshandam
International Journal of Mathematics in Operational Research (IJMOR), Vol. 5, No. 1, 2013

Abstract: In non-parametric methods, if the number of operational units is relatively small when compared with the sum of number of inputs and outputs, many units are evaluated as efficient. The super-efficiency Data Envelopment Analysis (DEA) model can be used to discriminate between these efficient units. 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 infeasibility problem of the existing methods. This approach is applied to 14 commercial bank branches and 15 US cities, respectively.

Online publication date: Mon, 31-Mar-2014

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