Pathwise properties and performance bounds for a perishable inventory system
成果类型：
Article
署名作者：
Cooper, WL
署名单位：
University of Minnesota System; University of Minnesota Twin Cities
刊物名称：
OPERATIONS RESEARCH
ISSN/ISSBN：
0030-364X
DOI：
10.1287/opre.49.3.455.11216
发表日期：
2001
页码：
455-466
关键词：
摘要：
We study a perishable inventory system under a fixed-critical number order policy. By using an appropriate transformation of the state vector, we derive several key sample-path relations. We obtain bounds on the limiting distribution of the number of outdates in a period. and we derive families of upper and lower hounds for the long-run number of outdates per unit time. Analysis of the bounds on the expected number of outdates shows that at least one of the new lower bounds is always greater than or equal to previously published lower bounds, whereas the new upper bounds are sometimes lower than and sometimes higher than the existing upper bounds. In addition, using an expected cost criterion. we compare optimal policies and different choices of critical-number policies.