Russell-graph measure and super efficiency in data envelopment analysis

Alireza Amirteimoori, Sohrab Kordrostami and Leila Khoshandam

International Journal of Mathematics in Operational Research, 2013, vol. 5, issue 1, 40-54

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.

Keywords: DEA; data envelopment analysis; efficiency measures; super-efficiency; Russell graph; commercial banks; bank branches; non-parametric methods; operational units; unit efficiency; cities. (search for similar items in EconPapers)
Date: 2013
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