An Integrated Sustainable and Flexible Supplier Evaluation Model under Uncertainty by Game Theory and Subjective/Objecti
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ORIGINAL RESEARCH
An Integrated Sustainable and Flexible Supplier Evaluation Model under Uncertainty by Game Theory and Subjective/ Objective Data: Iranian Casting Industry Niloofar Vahabzadeh Najafi1 • Alireza Arshadi Khamseh2 • Abolfazl Mirzazadeh1
Received: 22 February 2020 / Accepted: 21 July 2020 Global Institute of Flexible Systems Management 2020
Abstract According to the rapid growth of sustainability in supply chain management in recent years, experts are encouraged to consider more detailed social and environmental factors in their assessment models. In our proposed model for investigating the mentioned factors in more real condition and to obtain superior indices, the best–worst method and stepwise weight assessment ratio analysis method have been suggested for subjective and objective data which have been prepared based on specialist opinion and real registered data, respectively. Game theory has been applied to explore more appropriate combinations of subjective and objective weights and decreasing the conflicts, while DEMATEL was employed to define the internal relationship of the criteria. For tackling the inhomogeneous information and input data’s uncertainty, Dempster–Shafer theory has been applied. Finally for assessment of the proposed model, real data from an Iranian Casting Factory would have been considered for sustainable/flexible supplier selection.
& Alireza Arshadi Khamseh [email protected] Niloofar Vahabzadeh Najafi [email protected] Abolfazl Mirzazadeh [email protected] 1
Industrial Engineering Department, Faculty of Engineering, Kharazmi University, Tehran, Iran
2
Department of International Logistics and Transportation, Faculty of Economics Administration and Social Sciences, Istanbul Gelisim University, Istanbul, Turkey
Keywords BWM DEMATEL Dempster–Shafer Flexibility Game theory Subjective/objective Sustainable supplier selection SWARA
Introduction and Literature Review In the scope of supply chain management, supplier selection is of vital importance. The sustainability of the supply chain is significant which made the choice of suppliers a challenging issue. In addition, more harvesting of natural resources is as a result of competition and increased economic growth of countries, which leads to problems such as climate pollution or environmental dangers. Therefore, the choice of green suppliers these days has been increasingly taken into consideration and is a significant factor. Experts have included sustainable supply chain management in the mentioned topic too, which includes social, economic and environmental key factors which are the main criteria for selecting a sustainable supplier (Azadnia et al. 2015; Kaur et al. 2016; Zahraee et al. 2018). Supply chain management have to find innovative ways to overcome disruption risks through being more sustainable, and one of the main factors which plays an important role in this issue is flexibility of suppliers. This flexibility and sustainability even though have some conflict at a glance, but
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