Performance measurement for network DEA with undesirable factors

Performance measurement for network DEA with undesirable factors

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Article ID: iaor200914229
Country: United Kingdom
Volume: 9
Issue: 2
Start Page Number: 141
End Page Number: 153
Publication Date: Feb 2008
Journal: International Journal of Management and Decision Making
Authors: ,
Keywords: statistics: data envelopment analysis
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 analyse 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.

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