Inventory models with fixed costs, forecast updates, and two delivery modes
成果类型：
Article
署名作者：
Sethi, SP; Yan, HM; Zhang, HQ
署名单位：
University of Texas System; University of Texas Dallas; Chinese Academy of Sciences
刊物名称：
OPERATIONS RESEARCH
ISSN/ISSBN：
0030-364X
DOI：
10.1287/opre.51.2.321.12777
发表日期：
2003
页码：
321-328
关键词：
摘要：
This paper is concerned with a periodic review inventory system with fast and slow delivery modes, fixed ordering cost, and regular demand forecast updates. At the beginning of each period, on-hand inventory and demand information are updated. At the same time, decisions on how much to order using fast and slow delivery modes are made. Fast and slow orders are delivered at the end of the current period and at the end of the next period, respectively. A forecast-update-dependent (s, S)-type policy is shown to be optimal. Also shown are some monotonicity properties of the policy parameters with respect to the costs and information updates.