Proposing an integrated financial-physical model for master planning of sustainable closed-loop supply chain: A case study of plastic recycling industry

Balance growth in economic, social and environmental dimensions, can ensure long-term success of any supply chain and considering these dimensions in designing and planning of supply chain is the cause of configuration of sustainable supply chain. On the other hand, integrity of financial and physical flow of supply chain plays a key role in success of supply chain to achieving its goals. Therefore, an integrated financial-physical planning model for closed-loop sustainable supply chain is proposed in this paper. Objectives of proposed model are maximizing profit, minimizing environmental and social effects and minimizing deviation of financial indicators from desired values. In order to cope with multi-objective nature of the problem, goal programming approach is implemented. Proposed model encompasses production, distribution and collection plan which is implemented in a real case in plastic recycling industry. Results of research prove effectiveness of considering financial indicators in master planning of sustainable closed-loop supply chain.