Inventory Management of Perishable Products in a Supply Chain

供应链中易腐产品的库存管理

• 批准号: RGPIN-2019-05625
• 负责人: AboueeMehrizi, Hossein
• 金额: $ 2.62万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=738410
• 关键词: Inventory; Management; Perishable; Products; Supply

Efficient inventory management of perishable products is of great economic and social importance. Supermarkets often carry more than 30000 items of which 15% are perishable. A recent study shows that, annually, 11.4% of the fresh fruit, 9.7% of fresh vegetables and 4.5% of fresh meat is wasted in supermarkets. In 2010, 29.4% of the food supply in Canada was wasted, with 9.1% of that in retail. These examples highlight the importance of effective management of perishable products, to reduce both wastage cost and environmental impact. To date, the vast body of research in this area model the problem as a queueing or inventory system. To make the model tractable, most papers simplify many fundamental elements of the perishable product inventory management system, such as uncertainty in the initial age of the units received by retailers and transshipment of units between locations. Moreover, some basic aspects of the perishable product supply chain are completely ignored, including inventory routing when demand is uncertain and non-routine (emergency) orders placed by retailers. To close these gaps, the proposed research program will study the inventory management of perishable products in a supply chain facing uncertain demand. The proposed program will empirically validate the developed models using real world data to provide insights into the inventory management of perishable products. Specifically, considering that the retailers usually do not receive fresh products, as has been observed in a recent empirical study by the applicant, the first goal of the proposed research is to model and analyze the effects of the initial age of units received by a retailer on different performance measures, including the rate of outdated units and the chance of shortage. The second goal of this research is to study the impact of transshipment of perishable products between locations on the performance of a supply chain. Transshipment has been considered as a tool to manage mismatch between the supply and demand. While transshipment of non--perishable products has been long studied in the literature, to the best knowledge of the applicant, there is no paper in the literature that provides a guideline for inventory management of perishable products when retailers transship units among each other, considering the initial age of units. Motivated by a recent collaboration that the applicant had with South Western Ontario Regional Blood Coordinating Network, the third goal of the proposed research is to model and analyze the inventory routing of perishable products where retailers may place emergency orders to satisfy shortages they face. This program will benefit retailers and users of perishable products, logistics companies, the waste management industry, and ultimately the Canadian consumer, by reducing waste and providing increased capacity of experts in the management of perishable products, through the trainees in the program.

易逝品的有效库存管理具有重要的经济和社会意义。超市通常有超过30000种商品，其中15%是易腐的。最近的一项研究表明，每年有11.4%的新鲜水果、9.7%的新鲜蔬菜和4.5%的新鲜肉类在超市中被浪费。2010年，加拿大29.4%的食品供应被浪费，其中9.1%在零售环节。这些例子突出了有效管理易腐产品的重要性，以减少浪费成本和环境影响。迄今为止，这一领域的大量研究将问题建模为库存或库存系统。为了使模型易于处理，大多数文件简化了易腐产品库存管理系统的许多基本要素，如零售商收到的单位的初始年龄和转运单位之间的位置的不确定性。此外，易腐产品供应链的一些基本方面被完全忽略，包括库存路由时的需求是不确定的和非例行（紧急）的订单由零售商。 为了缩小这些差距，拟议的研究计划将研究在供应链中面临不确定需求的易腐产品的库存管理。建议的程序将经验验证开发的模型使用真实的世界数据提供洞察到易腐产品的库存管理。具体地，考虑到零售商通常不接收新鲜产品，如申请人在最近的实证研究中所观察到的，所提出的研究的第一个目标是建模和分析零售商接收的单元的初始年龄对不同性能指标的影响，包括过时单元的比率和短缺的机会。本研究的第二个目的是研究易腐产品在不同地点之间转运对供应链绩效的影响。转运被认为是管理供需不匹配的一种工具。虽然非易腐产品的转运已经在文献中进行了长期研究，但据申请人所知，文献中没有文献提供当零售商在彼此之间转运单元时考虑单元的初始年龄的易腐产品的库存管理的指南。受申请人最近与西南安大略地区血液协调网络的合作的激励，所提出的研究的第三个目标是建模和分析易腐产品的库存路由，其中零售商可以下紧急订单以满足他们面临的短缺。该计划将有利于零售商和易腐产品的用户，物流公司，废物管理行业，并最终加拿大消费者，通过减少浪费和提供易腐产品管理专家的能力增加，通过该计划的学员。