Economic production quantity models for deteriorating items with up-stream full trade credit and down-stream partial trade credit
Economic production quantity models for deteriorating items with up-stream full trade credit and down-stream partial trade credit
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DOI：
10.1016/j.ijpe.2013.07.024
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发表时间：
2014-09
影响因子：
12
通讯作者：
Sheng-Chih Chen;J. Teng;K. Skouri
中科院分区：
文献类型：
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作者：
Sheng-Chih Chen;J. Teng;K. Skouri
在实践中，为了降低信用风险客户的违约风险，卖方（例如，制造商或零售商）经常要求其信用风险客户在下订单时支付购买量的一部分作为抵押品存款，然后对未付余额赠款可允许的延迟（即，下游部分贸易信贷）。相比之下，卖方通常从供应商处获得关于整个购买量的允许延迟（即，上游全额贸易信贷）。在本文中，我们提出了一个经济生产数量（EPQ）模型，在供应链中的恶化物品的上游和下游的贸易信贷融资。利用分式规划的结果，证明了最优解的存在性和唯一性。此外，我们提出了三个判别条件，以确定可能的替代品中的最佳解决方案。最后，给出了一些数值例子，以突出的理论结果和管理的见解。
In practice, in order to reduce default risks with credit-risk customers, a seller (e.g., a manufacturer or a retailer) frequently requests its credit-risk customers to pay a fraction of the purchase amount at the time of placing an order as collateral deposit, and then grants a permissible delay on the outstanding balance (i.e., a down-stream partial trade credit). By contrast, the seller usually receives a permissible delay on the entire purchase amount from the supplier (i.e., an up-stream full trade credit). In this paper, we propose an economic production quantity (EPQ) model for deteriorating items in a supply chain with both up-stream and down-stream trade credit financing. By using fractional programming results, we can prove that the optimal solution not only exists but also is unique. Moreover, we propose three discrimination terms to identify the optimal solution among possible alternatives. Finally, some numerical examples are presented to highlight the theoretical results and managerial insights.