Authors: Zhongsheng Hua, Yiwen Bian
Addresses: Department of Information Management and Decision Science, School of Management, University of Science and Technology of China (USTC) Hefei, Anhui 230026, PR China. ' School of Management, University of Science and Technology of China (USTC), Hefei, Anhui 230026, PR China
Abstract: Traditional Data Envelopment Analysis (DEA) models take Decision-Making Unit (DMU) as a |black box| without considering the inputs/outputs of its intermediate production processes. To provide efficiency enhancing information regarding the sources of DMUs| inefficiencies, researchers investigate network DEA models. This paper proposes a network DEA model in the presence of undesirable factors. In the network DEA model, a DMU is composed of a set of interdependent sub-DMUs, that is, input of a sub-DMU may be an undesirable output of another sub-DMU. We develop a method of estimating efficiency of such DMU, and analyses efficiency relationship between a DMU and its sub-DMUs. Our model provides a way of improving performance of a DMU through identifying its inefficient sub-DMUs. Numerical examples are used to show our results.
Keywords: data envelopment analysis; network DEA; undesirable factors; performance measurement; decision making.
International Journal of Management and Decision Making, 2008 Vol.9 No.2, pp.141 - 153
Available online: 18 Feb 2008 *Full-text access for editors Access for subscribers Purchase this article Comment on this article