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Optimal inventory decisions under vendor managed inventory: Substitution effects and replenishment tactics

机译：供应商管理的库存下的最佳库存决策：替代效果和补货策略

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摘要

This paper introduces a two-echelon supply chain that markets two substitutable brands of a product with uncertain demand. The supply chain employs the vendor-managed inventory model wherein suppliers take responsibility to manage the inventory for the retailer. Four inventory models are discussed in the paper. In the basic model, the two brands are supplied by two different suppliers. The optimal decisions for the supply chain are identified and the impacts of substitution effects are discussed. Then the model is extended so one of the suppliers can replenish his brand in the selling season. In the third model, a special case is considered in which the two brands are exclusively provided by only one supplier. At last, replenishment tactics are introduced into the model when two brands are exclusively provided by only one supplier. We obtain optimal solutions for all models when substitution effects are considered. Numerical examples are provided to illustrate our findings and validate our results.
机译：本文介绍了一个两级供应链，用于销售需求不确定的产品的两个可替代品牌。供应链采用卖方管理的库存模型，其中供应商负责为零售商管理库存。本文讨论了四种库存模型。在基本模型中，两个品牌由两个不同的供应商提供。确定了供应链的最佳决策，并讨论了替代效应的影响。然后扩展模型，以便供应商之一可以在销售季节补充其品牌。在第三个模型中，考虑一种特殊情况，其中两个品牌仅由一个供应商独家提供。最后，当只有一个供应商专门提供两个品牌时，将补货策略引入模型。当考虑替代效应时，我们为所有模型获得最优解。提供了数值示例来说明我们的发现并验证我们的结果。

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