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A New Approach for Ranking Efficient Units in Data Envelopment Analysis and Application to a Sample of Vietnamese Agricultural Bank Branches

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Author(s): Nguyen Khac Minh | Pham Van Khanh | Pham Anh Tuan

Journal: American Journal of Operations Research
ISSN 2160-8830

Volume: 02;
Issue: 01;
Start page: 126;
Date: 2012;
Original page

Keywords: Data Envelopment Analysis (DEA) | Slacks-Based Measure of Efficiency (SBM) | SCI Super-Efficient

ABSTRACT
This paper proposes a new approach for ranking efficiency units in data envelopment analysis as a modification of the super-efficiency models developed by Tone [1]. The new approach based on slacks-based measure of efficiency (SBM) for dealing with objective function used to classify all of the decision-making units allows the ranking of all inefficient DMUs and overcomes the disadvantages of infeasibility. This method also is applied to rank super-efficient scores for the sample of 145 agricultural bank branches in Viet Nam during 2007-2010. We then compare the estimated results from the new SCI model and the exsisting SBM model by using some statistical tests.
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