Semnan University Press Journal of Modeling in Engineering 2008-4854 17 57 2019 06 22 Designing of a four-level closed loop Supply Chain Network with an Integration Approach for Economic, Environmental, and Social Responsibility about Employees Designing of a four-level closed loop Supply Chain Network with an Integration Approach for Economic, Environmental, and Social Responsibility about Employees 69 92 3911 10.22075/jme.2018.16113.1599 FA Jalal Rezaeenour Qom university Fahimeh Yazdian MSc student of Industrial Engineering, Department of Industrial Engineering, Faculty of Technology and Engineering, University of Qom Mohsen Aghelan Department of Industrial Engineering, Faculty of Technology and engineering, University of Qom, Qom, Iran Journal Article 2018 10 14 In this paper, a new mixed integer mathematical model is developed for desifning a sustainable closed loop supply chain management problem. In this model, some real world manufacturing features are taken into account like exonomical, environmental and social responsibility indexes. The main novelty of propose model the consideration of three key indexes of local and sustainable job opportunities and also creating new job opportunities in terms of social responsibility of a supply chain. Moreover, the greenness of a supply chain in terms of CO2 emmisions are investigated through the developed model. In order to evaluate and validate the proposed mathematical model, some numerical examples are generated randomly, and solved using the CPLEX solver on Gams optimization package. In addition, some magerials insightsd are included in the paper by performing deep sensitivity analysis of the esseintial parameters. Based on obtained results, considering all sustainbiliy aspects of a supply chain in a concurrent way can reduce costs, significantly. In this paper, a new mixed integer mathematical model is developed for desifning a sustainable closed loop supply chain management problem. In this model, some real world manufacturing features are taken into account like exonomical, environmental and social responsibility indexes. The main novelty of propose model the consideration of three key indexes of local and sustainable job opportunities and also creating new job opportunities in terms of social responsibility of a supply chain. Moreover, the greenness of a supply chain in terms of CO2 emmisions are investigated through the developed model. In order to evaluate and validate the proposed mathematical model, some numerical examples are generated randomly, and solved using the CPLEX solver on Gams optimization package. In addition, some magerials insightsd are included in the paper by performing deep sensitivity analysis of the esseintial parameters. Based on obtained results, considering all sustainbiliy aspects of a supply chain in a concurrent way can reduce costs, significantly. https://modelling.semnan.ac.ir/article_3911_21dc58040ad14d8387e45a32d4d94ea1.pdf