双边网络环境下考虑消费者行为的两期供应链回收定价模型研究

闭环供应链管理是促进经济与环境双重效益提高的有效途径，已成为电子废弃物回收利用的核心解决方案。本文考虑包括制造商和第三方回收平台组成的闭环供应链模型，构建了完全垄断的两期动态博弈双边平台，分析和比较了分散决策和集中决策下闭环供应链的最优回收定价和利润，并利用收益共享契约来实现闭环供应链帕累托改进，最后用数值仿真分析了再制造比例、用户对平台利润贡献率对供应链利润的影响，验证了契约协调的有效性。研究表明：交叉网络外部性强度与平台向两边征收的价格、各主体利润和总体利润存在相关关系。第三方回收平台通过补贴消费者可有效增加回收效用，提高了回收率与消费者回收意识。实施收益共享契约的互利性使各主体积极主动实施契约，提高了各方与总体利润。

Research on A Two-period Supply Chain Recycling Pricing Model Considering Consumer Behavior in A Two-sided Network Environment

Closed-loop supply chain management has been an effective way to improve the economic and environmental benefits and has become a core solution of product recycling system. A closed-loop supply chain model including manufacturers, consumers and the third-party recycling platform is considered, building a complete monopoly two-sided platform in a two-period dynamic game. Based on the model, the optimal recycling prices and profits of the decentralized and centralized decision model are analyzed and compared respectively. Pareto improvement is also lived through revenue sharing contract. Finally, a numerical simulationisused to analyze the impact of remanufacturing proportion and profit contribution rate of users on the profits, which verifies the effectiveness of the contract. Overall, the results show that decentralized decision will lead to loss of profits of closed-loop supply chain, while the profit of the whole closed-loop supply chain is optimal under the centralized decision. By subsidizing consumers,the third-party recycling platform effectively increases the recycling efficiency. The recycling rate and consumers' awareness of recycling are also raised by this way.Additionally, each participant is motivated to implement the revenue sharing contract due to its mutual benefits, which increases the profit of each party. Consequently, the overall profit of the closed-loop supply chain increases as well.