在单周期易逝品供应链协调问题的研究中,常常借助于经典的报童模型,限制销售商的订货机会只有一次,然而在实际中,销售商常常会在销售期末进行再次订购.考虑了两次订货机会下由单制造商和多个销售商组成的供应链生产销售易逝品的协调模型,给出了模型的分析解,同时给出了使得供应链达到协调的一个全单位量折扣策略.并且用数值实例证实了本模型的特例——单制造商单销售商协调模型所得的系统期望总利润要高于已有此类模型的相应结果.
The classical newsvendor model (CNM) is often used to study the supply chain coordinating problem with perishable products in single period. However, only one order is permitted in the CNM, which is inappropriate in fact, because the buyer may make another order at the end of sell- ing season. In this paper, a newsvendor-type single-manufacturer multi-buyer supply chain coordination model with two ordering opportunities is developed. The manufacturer and the buyers operate to meet random demand of one product with a short lifecycle. The analytical results for the model are obtained, and an all-unit quantity discount policy which makes the supply chain achieve coordination is provided as well. Numerical experiments verify that the system expected profits obtained by a single-manufacturer single-buyer coordination model which is a special case of the proposed model are higher compared with an existing similar model.