A Single-Unit Decomposition Approach to Multiechelon Inventory Systems
成果类型：
Article
署名作者：
Muharremoglu, Alp; Tsitsiklis, John N.
署名单位：
Columbia University; Massachusetts Institute of Technology (MIT)
刊物名称：
OPERATIONS RESEARCH
ISSN/ISSBN：
0030-364X
DOI：
10.1287/opre.1080.0620
发表日期：
2008
页码：
1089-1103
关键词：
摘要：
we show the optimality of state-dependent echelon base-stock policies in uncapacitated serial inventory systems with Markov-modulated demand and Markov-modulated stochastic lead times in the absence of order crossing. Our results cover finite-time horizon problems as well as infinite-time horizon formulations, with either a discounted or an average cost criterion. We employ a novel approach, based on a decomposition of the problem into a series of single-unit single-customer problems that are essentially decoupled. Besides providing a simple proof technique, this approach also gives rise to efficient algorithms for the calculation of the base-stock levels.