Open Access
Translator Disclaimer
2014 Ranking DMUs by Calculating the Interval Efficiency with a Common Set of Weights in DEA
Vahideh Rezaie, Tahir Ahmad, Siti-Rahmah Awang, Masumeh Khanmohammadi, Normah Maan
J. Appl. Math. 2014: 1-9 (2014). DOI: 10.1155/2014/346763

Abstract

To evaluate the performance of decision making units (DMUs), data envelopment analysis (DEA) was introduced. Basically, the traditional DEA scheme calculates the best relative efficiency score (i.e., the “optimistic” efficiency) of each DMU with the most favorable weights. A decision maker may be unable to compare and fully rank the efficiencies of different DMUs that are calculated using these potentially distinct sets of weights on the same basis. Based on the literature, the assignable worst relative efficiency score (i.e., the “pessimistic” efficiency) for each DMU can also be determined. In this paper, the best and the worst relative efficiencies are considered simultaneously. To measure the overall performance of the DMUs, an integration of both the best and the worst relative efficiencies is considered in the form of an interval. The advantage of this efficiency interval is that it provides all of the possible efficiency values and an expanded overview to the decision maker. The proposed method determines the lower- and upper-bounds of the interval efficiency over a common set of weights. To demonstrate the implementation of the introduced method, a numerical example is provided.

Citation

Download Citation

Vahideh Rezaie. Tahir Ahmad. Siti-Rahmah Awang. Masumeh Khanmohammadi. Normah Maan. "Ranking DMUs by Calculating the Interval Efficiency with a Common Set of Weights in DEA." J. Appl. Math. 2014 1 - 9, 2014. https://doi.org/10.1155/2014/346763

Information

Published: 2014
First available in Project Euclid: 2 March 2015

zbMATH: 07131535
MathSciNet: MR3219419
Digital Object Identifier: 10.1155/2014/346763

Rights: Copyright © 2014 Hindawi

JOURNAL ARTICLE
9 PAGES


SHARE
Vol.2014 • 2014
Back to Top