Research On Recycling Mode And Pricing Decision Of Closed-loop Supply Chain Of Used Mobile Phones Based On Remanufacturing

With the development of science and technology and the progress of the times,the update speed of mobile phones has become faster and faster,a large number of mobile phones are idle to be treated,so the recycling of used mobile phones has a considerable development prospect.The waste hand has a high residual value,and according to the different product quality,there are different recycling channels.The waste mobile phone with high product quality can be sold to the manufacturer for remanufacturing production,producing remanufactured products with the same quality as the new product;the raw materials for the production of mobile phone parts with low product quality can be formed by disassembling and selling to the supplier.Based on Stackelberg game theory,a closed-loop supply chain composed of manufacturers,suppliers and third-party recyclers is constructed to analyze the effect of suppliers' participation in recycling on pricing decision-making of supply chain members when the quality of recycled products is uncertain.First of all,the game theory is used to build a single channel recycling remanufacturing model in which the supplier does not participate.The differential solution and reverse induction are used to obtain the equilibrium solution of supply chain coordination.Through parameter sensitivity analysis,the impact of different decision-making forms and remanufacturing threshold coefficient changes on the long-term interests of closed-loop supply chain is judged.Then,a dual channel recycling remanufacturing model is constructed,which is used to judge the influence of different decision-making forms and remanufacturing threshold coefficient on the profit of closed-loop supply chain members when the closed-loop supply chain reaches equilibrium through sensitivity analysis.Finally,the paper compares the recycling effect and profit effect of single channel and dual channel recycling remanufacturing mode.The results of this study show that the overall profit is more considerable when the single and dual channel recycling remanufacturing modes are centralized decisionmaking,but the overall profit will decrease with the increase of the threshold coefficient of remanufacturing,and the dual channel recycling mode is more superior and competitive than the single channel recycling.