【主讲】杜克大学助理教授Yehua Wei

【题目】通过流程灵活性和库存增加供应链稳健性

【时间】2015年5月6日（周三）10.30-12.00

【地点】清华经管学院伟伦楼453

【语言】英文

【主办】管理科学与工程系

【简历】Yehua Wei老师的简历

Yehua Wei is an Assistant Professor in the Decision Sciences area at the Fuqua School of Business, Duke University. Prior tothat, he received his PhD in Operations Research from Massachusetts Institute of Technology. His primary research interests lie inthe area of operations research. More specifically, he is interested in the benefit and design of limited resource pooling, supplychain risk mitigation, and decision making under uncertainty. He was the 2nd place winner of the 2011 George Nicholson PaperCompetition, the 2nd place winner of the 2013 CSAMSE Best Paper Competition, and the 2014 Daniel H. Wagner Prize for Excellence inOperations Research Practice. His publications have appeared journals such as Operations Research, Interfaces, and Harvard BusinessReview.

【摘要】We study a hybrid strategy that uses both process flexibility and inventory to mitigate risks of plant disruption. In thissetting, a firm allocates inventory before disruption while facing demand uncertainties; demand is realized after disruption, and thefirm schedules its production using process flexibility to minimize lost sales. This interplay between process flexibility andinventory is modeled as a two-stage robust optimization problem. We show that the robust optimization model can be formulated as alinear program and solved efficiently. Using analytical and numerical analysis, we study the impact of different process flexibilitydesigns on the firm's inventory decisions. Our analysis reveals three important insights regarding the impact of process flexibilityon (i) total inventory level; (ii) freedom in inventory placement; and (iii) inventory allocation strategy. In particular, we findthat under designs with high degrees of process flexibility, the firm allocates more inventory to low demand variability products andless inventory to high demand variability products. This paper is joint work with David Simchi-Levi and He Wang. The paper can be downloaded fromhttp://papers.ssrn.com/sol3/papers.cfm?abstract_id=2433175