In this paper, a closed-loop location-inventory problem for spare parts is presented. The proposed supply chain network includes two echelons, namely (1) distribution centers (DCs) and repairing centers (RCs) and (2) operational bases. Multiple spare parts are distributed among operational bases from distribution centers in the forward supply chain and failed spare parts from operational bases ...

A simple system dynamics model of a traditional/closed loop supply chain system is investigated. Particularly, the effect of remanufacture, remanufacturing lead-time and the return rate on the inventory variance and bullwhip effect were studied. Our results clearly showed that the bullwhip in the closed loop supply chain is bigger than one in traditional supply chain and foreign to the collecti...

Supply chain management and closed-loop supply chain management (CLSCM) have developed into established concepts in recent years. The related material cycles and product returns form an important part of all related processes with high potential for reducing environmental burden. The paper proposes a framework for (environmentally triggered) closed-loop supply chain management, spanning three d...

Modeling and optimal solving of supply chain management problems lead to efficient decision making in strategic planning and supply chain operations, resulting in a competitive advantage. Today, with the planning of a sustainable supply chain, in addition to achieving economic goals, it is possible to meet social and environmental objectives and considerations. This research deal with sustainab...

The main feature of sustainable supply Chain Management is reuse end life (EOL) products to reduce the environmental pollution. This paper considers consignment stock (CS) policy for a closed-loop chain (CLSC). To achieve economic goal, this study presents multi-echelon with single manufacturer, retailer and third-party service provider. objective optimize three-level CLSC under Stackelberg gam...

We use optimal control theory to determine the manufacturing, remanufacturing, and disposal rates in a closed-loop supply chain. The returned items are of different quality levels. firm grades according their quality. Each class is remanufactured stocked separately. Also, all subject deterioration rate depends on class. Finally, each sold segment customers. An illustrative example presented alo...