Structural properties of the optimal policy for dual-sourcing systems with general lead times

被引：43

作者：

Hua, Zhongsheng ^{[1
]}

Yu, Yimin ^{[2
]}

Zhang, Wei ^{[1
]}

Xu, Xiaoyan ^{[1
]}

机构：

[1] Zhejiang Univ, Sch Management, Hangzhou 310058, Zhejiang, Peoples R China

[2] City Univ Hong Kong, Dept Management Sci, Hong Kong, Hong Kong, Peoples R China

来源：

IIE TRANSACTIONS | 2015年 / 47卷 / 08期

基金：

中国国家自然科学基金;

关键词：

lead time; dual-sourcing; Control policy; OPTIMAL INVENTORY POLICY; 2 SUPPLY SOURCES; LOST-SALES; CAPACITATED SYSTEMS; ORDERING COSTS; DELIVERY MODES; DEMAND; CHAIN;

D O I：

10.1080/0740817X.2014.982839

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article considers a periodic-review inventory problem with two suppliers. The regular supplier has a longer lead time than the expedited supplier but has a lower unit cost. The structural properties of the optimal orders are characterized using the notion of L-<SIC>-convexity. Interestingly, the optimal regular order is more sensitive to the late-to-arrive outstanding orders, but the optimal expedited order is more sensitive to the soon-to-arrive outstanding orders. A heuristic policy is designed that provides an average cost saving of 1.02% over the best heuristic policy in the literature.

引用

页码：841 / 850

页数：10

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