The optimal order decision under supply risk is studied. It gets the conclusion that in some conditions , retailer will provide trade credit to supplier by advance payment to improve supply risk and increase the reliability of supply number. As a result, both supplier and retailer will benefit from this strategy.%分析了存在供应风险下的零售商订货决策.研究认为,在一定条件下,零售商可通过对供应商提供商业信用,提前支付部分货款,改善供应风险,提高供应数量可靠性,最终改善供应链系统内供应商和零售商的利润.
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