The Effect of Lead Time and Demand Uncertainties in (r, q) Inventory Systems

• 成果类型: Article
• 署名作者: Song, Jing-Sheng; Zhang, Hanqin; Hou, Yumei; Wang, Mingzheng
• 署名单位: Duke University; Shanghai Jiao Tong University; Chinese Academy of Sciences; National University of Singapore; Yanshan University; Dalian University of Technology
• 刊物名称: OPERATIONS RESEARCH
• ISSN/ISSBN: 0030-364X
• DOI: 10.1287/opre.1090.0711
• 发表日期: 2010
• 页码: 68-80
• 关键词: variability; COSTS; performance; POLICY

摘要

We study a single-item (r, q) inventory system, where r is the reorder point and q is the order quantity. The demand is a compound-Poisson process. We investigate the behavior of the optimal policy parameters and the long-run average cost of the system in response to stochastically shorter or less-variable lead times. We show that although some of the properties of the base-stock system can be extended to this more general model, some cannot. The same findings also apply when the comparison is conducted on the lead-time demand distributions.