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考虑随机产出随机需求下单供应商-单零售商的两级供应链系统,研究回购契约在双随机环境下协调供应链的作用,分别建立基于批发价格契约与回购契约的供应链分散决策模型,比较两种契约安排下的供应商定价、零售商订货决策以及供应链各方利润,揭示影响回购价格的关键因素,分析供应商产出波动、需求波动分别对供应商定价决策、零售商订货决策以及供应链各方利润的影响。研究表明,回购契约能有效协调随机产出随机需求下的供应链运作,且回购契约对供应链效率改善随着供应商产出波动的增加而提高。
Considering the two-level supply chain system of single-supplier-single-retailer with stochastic output demand, this paper studies the role of repo contracts in supply chain coordination in double stochastic environments, and establishes supply chain diversification based on wholesale price contracts and repurchase contracts respectively Decision-making model to compare the supplier pricing under two contractual arrangements, the retailer’s order decision and the profits of all parties in the supply chain to reveal the key factors that influence the repurchase price, analyze the fluctuation of supplier output and demand fluctuation, The retailer’s ordering decision, and the impact of the profits of all parties in the supply chain. The research shows that the repo contract can effectively coordinate the supply chain operation under the stochastic demand of stochastic output, and the repo contract can improve the supply chain efficiency with the increase of supplier output.