Author(s)

Nguyen Khac Minh, Pham Van Khanh, Pham Anh Tuan

Air Defence-Air Force Academy, Hanoi, Vietnam.
Military Technical Academy, Hanoi, Vietnam.
Water Resources University, Hanoi, Vietnam.

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.

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

N. Minh, P. Khanh and P. Tuan, "A New Approach for Ranking Efficient Units in Data Envelopment Analysis and Application to a Sample of Vietnamese Agricultural Bank Branches," American Journal of Operations Research, Vol. 2 No. 1, 2012, pp. 126-136. doi: 10.4236/ajor.2012.21015.