中文摘要：

信用支付契约是使供应链各方达到协调的重要手段。本文在单个制造商和单个零售商组成的两级供应链系统下,建立了制造商和零售商的库存控制模型,提出了联合决策零售商的订货批量,以及制造商的生产批量和定期信用支付期的启发式算法。给出了利润分配方案,以使供应链达到协调。最后,本文通过算例验证了模型和算法的有效性,为运用信用支付契约协调供应链提供了理论依据。

英文摘要：

The contract with trade credit is one of the most important means to coordinate the supply chain.In a two level supply chain composed of one manufacturer and one retailer,the inventory models are described,and the joint decision of the retailer＇s optimal order quantity,the manufacturer＇s optimal lot-sizing and the optimal periodic trade credit period is proposed using heuristic algorithms.Then the profits distribution program is provided to coordinate the supply chain.Finally,the model and propositions are validated by an example.To conclude,this paper provides a theoretical basis to realize the supply chain coordination using the contract with trade credit.