双层延期支付及价格折扣条件下零售商的最优库存策略

Retailer's Optimal Inventory Policy under Two-Level-Trade-Credit and Price-discount

研究了在双层延期支付及价格折扣条件下零售商的库存策略。假设零售商在供应链中占据决策的主导地位,即零售商从供应商处得到延期支付及相应的现金折扣,而零售商仅为其顾客提供延期支付。建立了以零售商利润最大化为目标的EOQ(经济订购批量)模型,对模型分析求解,得到零售商的最优订货周期,并且通过一个简易算法,使得模型更容易运用于实践。通过数值算例验证了结论,并为企业物流管理实践提供了建议。

The retailer＇s inventory policy in a supply chain environment under two-level-trade-credit and price-discount is addressed. It is assumed that the retailer has the power to make decision in the whole supply chain. In other words, the retailer can obtain the trade credit and corresponding price-discount offered by the supplier, while the retailer just offers the trade credit to its customers. An economic order quality （EOQ） model is developed to maximize the retailer＇s profit. Based on the model, the retailer＇s optimal inventory policy is determined. Moreover, a simple but efficient algorithm is presented such that it is applicable to practical applications. Finally, a numerical example is given to validate the results obtained and show the application of the proposed method.