Anticipated rationing policy for two demand classes under service level constraints

Anticipated rationing policy for two demand classes under service level constraints
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服务水平限制下两个需求类别的预期配给政策

DOI:
10.1016/j.cie.2013.02.005
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发表时间:
2013-06
影响因子:
7.9
通讯作者:
Sun, Linyan
Sun, Linyan
中科院分区:
工程技术2区
文献类型:
--
作者:
Wang, Yi;Zhang, Sheng Hao;Sun, Linyan

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研究了一类具有两个需求类的周期评审无限视界缺货库存模型,其中基础库存策略控制补货。我们提出了一种易于使用的配给政策,它通过考虑下一时期的即将交付来为未来高优先级需求保留库存,因此称为预期配给政策。通过应用多维马尔可夫链方法,我们能够准确地评估系统的性能。我们还得到了α-服务水平约束问题和γ-服务水平约束问题的结构结果,并找到了最优解。数值比较研究证明了预期定量配给政策的有效性,并以众所周知的定水平定量配给政策为基准。
This paper considers a periodic-review, infinite-horizon, backorder inventory model with two demand classes, where a base-stock policy controls replenishment. We propose an easy-to-use rationing policy, which reserves inventory for future high priority demands by taking the coming delivery of the next period into consideration, hence called anticipated rationing policy. By applying a multidimensional Markov chain approach, we are able to evaluate system performance exactly. We also derive structural results and find optimal solutions for both α-service level and γ-service level constraint problems. A numerical comparison study demonstrates the effectiveness of anticipated rationing policy, where the well-known constant level rationing policy serves as the benchmark.
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