Managing Supply Disruptions when Sourcing from Reliable and Unreliable Suppliers

• 成果类型: Article
• 署名作者: Hu, Bin; Kostamis, Dimitris
• 署名单位: University of North Carolina; University of North Carolina Chapel Hill
• 刊物名称: PRODUCTION AND OPERATIONS MANAGEMENT
• ISSN/ISSBN: 1059-1478
• DOI: 10.1111/poms.12293
• 发表日期: 2015
• 页码: 808-820
• 关键词: multiple sourcing; guaranteed delivery; supplier ranking

摘要

We study a manufacturer's optimal multiple-sourcing strategies when some but not all suppliers face risks of complete supply disruptions. Using an approximate model, we show that the optimal unreliable orders are ranked by a simple and intuitive criterion, and are invariant of minor market size changes. Furthermore, when ordering from one reliable and one unreliable supplier, we show that the total order quantity and its allocation between the two suppliers are independent decisions. We then test and confirm the robustness of the insights without the approximation, as well as when we relax various assumptions.