摘要
随着竞争日趋激烈,需求变化节奏加快,需求时变性越加明显.在需求时变的环境下探讨了等周期补货情形下缺货时点优化以及非等周期补货情形下缺货时点与补货时点优化问题,特别着重研究了补货时点局部优化与整体优化的决策模型,并对非等周期补货与等周期补货、补货时点整体优化与补货时点局部优化作对比分析,并发现,在时变需求环境下非等周期补货与补货时点整体优化在降低库存成本方面具有明显优势.同时,分析了补货时点优化的效果与供需双方补货次数、需求时变性的关系.
Along with increasingly fierce competition, demand change becomes faster and demand is apparently time-varying. This paper, based on time-varying demand, probes into optimization of shortage times under equal-cycle reorder and optimization of shortage times and reorder times under non-equal-cycle reorder, especially, the paper studies decision-making models of local optimization and global optimization, and finds that non-equal-cycle reorder and global optimization of reorder times can effectively decrease inventory cost. Meanwhile, this paper analyses relationship between performance of reorder time optimization and both the parties＇ reorder frequency and demand time-varying.
出处
《管理科学学报》
CSSCI
北大核心
2006年第1期38-46,共9页
Journal of Management Sciences in China
基金
国家自然科学基金资助项目(70332001)
江西省社会科学研究"十五"(2005年)规划资助项目(05yj17)
关键词
时变需求
供应链
库存决策
局部优化
整体优化
time-varying demand
supply chain
inventory decision-making
local optimization
global optimization
