Volume 55, Number 3, May-June 2021
|Page(s)||1825 - 1840|
|Published online||22 June 2021|
Group ranking of two-stage production units in network data envelopment analysis
Department of Mathematics, Qazvin Branch, Islamic Azad University, Qazvin, Iran
2 Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran
* Corresponding author: email@example.com
Accepted: 22 May 2021
Data envelopment analysis (DEA) is a useful mathematical tool for evaluating the performance of production units and ranking their relative efficiency. In many real-world applications, production units belong to several separate groups and also consist of several sub-units. In this paper, we introduce a new method of evaluating group efficiency of two-stage production systems. To this end, some new DEA models are introduced for evaluating and ranking groups of production systems based on the average and weakest group performance criteria. Some numerical examples, including an empirical application in the banking industry, are also provided for illustration.
Mathematics Subject Classification: 90B30
Key words: Data envelopment analysis (DEA) / group ranking / network group efficiency (NGE) / Network DEA (NDEA)
© The authors. Published by EDP Sciences, ROADEF, SMAI 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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