【思源论坛第170讲】 刘恒宇博士: 多周期固定比例协同生产系统的最优生产库存策略
发布人:黄晓吉  发布时间:2019-03-12   浏览次数:258

报告信息

主讲人   刘恒宇 北京交通大学经济管理学院博士

主持人   洪江涛副教授上海对外经贸大学国际经贸学院

时  间   2019年3月15日(星期五) 09:30-11:00

地  点   上海对外经贸大学信息楼336室

 

主讲人简介

刘恒宇,北京交通大学经济管理学院物流管理与工程专业博士,研究方向为供应链管理、易逝品库存管理与收益管理。2017-2018年,受国家留基委资助到美国佐治亚理工学院工业与系统工程系访学一年。目前已在OMEGA、International Journal of Production Research等国际权威期刊上发表多篇文章,并担任International Journal of Production Economics审稿人。

报告摘要(Abstract)

  

Consider the multi-period production-inventory problem where a manufacturer purchases and processes a raw material into two products in fixed proportions when facing uncertain demands. In each period, the manufacturer first reviews the on-hand inventories of the products and then decides the purchase/processing quantity of the raw material. After processing the raw material into the end products, the demands of the two products are realized and satisfied by the available inventories. Any leftover inventories are carried to the next period while the unsatisfied demands are backordered. By proving the concavity and submodularity of the expected profit-to-go function, we establish that the one-dimensional produce-up-to policy is optimal. We also study the case where the raw material is seasonal and the manufacturer has only one chance to purchase. Modelling it as a dynamic program, we establish that the one-dimensional produce-down-to policy is optimal. Finally, we conduct numerical studies to examine the impacts of supply-demand balance and price fluctuation on the optimal policy, and derive managerial insights from the analytical findings.