基于信用支付的两种支付模式,构建零售商的库存模型,采用算术几何不等式方法,讨论模型最优解的存在性,并找出各种金融环境下零售商的最优订购策略和支付策略,最后通过算例验证模型和方法的有效性。 Based on the two payment modes of credit payment, the retailer’s inventory model is constructed, and the existence of the optimal solution of the model is discussed by arithmetically geometric inequality. The optimal ordering strategy and payment strategy for retailers in various financial environments are also discussed. Finally, an example is given to verify the validity of the model and the method.