Title: Designing a closed-loop supply chain network with a focus on the circular economy concept

Authors: Fatemeh Jaferi; Arash Shahin; Mohammadreza Vasili; Omid Boyer Hassani

Addresses: Department of Industrial Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran ' Department of Management, University of Isfahan, Isfahan, Iran ' Department of Industrial Engineering, Lenjan Branch, Islamic Azad University, Isfahan, Iran ' Department of Industrial Engineering, Najafabad Branch, Islamic Azad University, Isfahan, Iran

Abstract: This paper aims to propose a multi-objective planning model to optimise the closed-loop supply chain network considering the circular economy concept. The intended mathematical model can view all aspects of sustainability, including economic, environmental, and social factors. Objective functions have become a one-objective planning problem using the additive weighing method. The designed mathematical model is solved by GAMS software. Designing a mathematical planning model to optimise the sustainable closed-loop supply chain network focusing on the circular economy concept and considering a framework for validation and solution of the developed model with an appropriate computational method are the main contributions in this paper. The results show that acceptable results are obtained by implementing the proposed model.

Keywords: circular economy; sustainable development; closed-loop supply chain; CLSC; supply chain.

DOI: 10.1504/IJLSM.2025.143892

International Journal of Logistics Systems and Management, 2025 Vol.50 No.1, pp.1 - 27

Received: 21 Jan 2022
Accepted: 18 Apr 2022
Published online: 13 Jan 2025 *