两次订购机会下考虑需求信息更新的横向转运库存策略

Lateral transshipment inventory strategy in two-retailer supply chain with two ordering opportunities and demand information update

不同零售商在各自区域市场内面临的需求不确定,加剧了整个市场的供需不匹配,横向转运策略有助于解决这一问题.在制造商提供不同订购价格的两次订购机会下,考虑两个零售商利用两次订购的间隔期进行需求预测信息更新,对零售商间的预防性横向转运库存策略进行了研究.在对零售商的需求信息更新进行刻画的基础上,通过搜集到的需求信息信号进行库存调整判断,随后分别构建了零售商之间允许预防性横向转运和不允许预防性横向转运两种情形下的库存决策模型,并对转运价格和需求信息更新参数进行了灵敏度分析.数值与算例分析表明:零售商借助需求信息更新,采用预防性横向转运策略能够提高零售商和供应链的利润;制造商亦可用较低的生产规模满足市场需求.由此验证了所构建模型的有效性.

The demand uncertainties in different regional markets exacerbate the mismatch between supply and demand in the overall market.Lateral transshipment inventory strategy can be used to solve this mismatch problem.In this paper,we study the preventive lateral transshipment inventory strategies by considering two retailers who can update the forecast information of demand when the manufacturer provides two ordering opportunities at different prices.Based on the description of the demand information update process,we first carry out inventory adjustment judgment through the collected demand information signal,then develop two inventory decision models according to whether the retailers implement transshipments.Sensitivity analysis is performed for the parameters of transfer price and demand information update.The analysis of numerical examples show that demand information update and the preventive lateral transshipment strategy can not only increase the profit of retailers and the whole supply chain system,but also help manufacturer meet market demand with lower production scale.Then the validity of the model is verified.