Title: A new approach for considering a dual-role factor in data envelopment analysis

Authors: Abdollah Noorizadeh; Mahdi Mahdiloo; Reza Farzipoor Saen

Addresses: Faculty of Management and Accounting, Department of Industrial Management, Islamic Azad University – Karaj Branch, P.O. Box 31485-313, Karaj, Iran ' Faculty of Management and Accounting, Department of Industrial Management, Islamic Azad University – Karaj Branch, P.O. Box 31485-313, Karaj, Iran ' Faculty of Management and Accounting, Department of Industrial Management, Islamic Azad University – Karaj Branch, P.O. Box 31485-313, Karaj, Iran

Abstract: The conventional data envelopment analysis models deal with dual-role factor as non-discretionary (uncontrollable) factor. However, there might be dual-role factor which is under control of decision-maker. In addition, despite the fact that there are several publications addressing dual-role factors, it seems that their idea of classifying a factor as an input or an output within a single model has a limitation. They also do not consider non-zero input and output slacks and cannot fully measure the inefficiency of decision-making units. To resolve these limitations and to consider dual-role factor as well, this paper proposes a slacks-based measure model which does not consider dual-role factor as a non-discretionary factor. To compare the results of proposed approach with conventional model, a statistical analysis is run. A numerical example demonstrates the application of the proposed method.

Keywords: dual-role DEA; data envelopment analysis; SBM; slacks-based measure; contingency tables; decision making.

DOI: 10.1504/IJOR.2012.046645

International Journal of Operational Research, 2012 Vol.14 No.2, pp.135 - 155

Available online: 13 Apr 2012 *

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