主讲人：张菊亮（北京交通大学经济管理学院教授）

邀请人：卓新建

时  间：2018年10月29日（周一）9:00-10:00

地  点：主楼1214

报告摘要：

Many agricultural products or produce (e.g., apple, pear, potato, etc. are perishable. Wholesalers purchase and store these products in a well-controlled environment in the harvest season, and then retrieve select amounts to sell in the market. The amount to purchase in the harvest season as well as how much to retrieve for each selling period strongly impact the profit for a wholesaler. This paper addresses the decisions for optimal purchase and inventory retrieval quantities for a perishable seasonal agricultural product considering the costs of storage, underage and overage, prospects of future prices and demands, and product deterioration. Specifically, we consider a single-product finite-period inventory model in which a wholesaler purchases the product in the first period and sells it in the subsequent periods where the prices fluctuate and are uncertain. The demands are influenced by the prices in the current and previous periods. The objective is to maximize the total expected profit. We characterize the structure of the optimal purchase and inventory retrieval policies, and perform numerical experiments to study sensitivity to various parameters and gain managerial insights. We also compare the performance of the optimal policy with two approximate policies in a case study to demonstrate the value of our model. The results show that the optimal policy can raise the expected profit by 22.4 percent in 2014 and reduce the expected loss by 10.2 percent in 2015 in the case.

报告人简介：

 张菊亮，北京交通大学经济管理学院教授，博士生导师。教育部新世纪人才支持计划，教育部物流管理与工程教学指导委员会委员，北京市运筹学会常务理事，SSCI期刊Journal of Business Logistics 区域编委，《运筹与管理》《北京交通大学学报》（社科版）编委。二十多年来，一直从事运筹与优化、物流与供应链管理方面的研究。利用最优化及对策论等运筹理论与方法，围绕企业面临的实际物流与供应链管理问题进行建模、分析、计算和模拟，探讨最优策略的性质和高效的计算方法，辅助企业决策。到目前为止，主持国家自然科学基金重大项目课题1项，国家自然科学基金面上项目3项（都已结题，管理学部结题后评估一项为“特优”（2008），两项为“优”（2012，2016）），国家自然科学基金委与香港RGC联合资助项目1项，国际自然科学基金委/比利时弗兰德研究基金会合作交流项目1项，教育部新世纪人才项目1项，教育部人文社会科学基地重大项目1项，国家博士后基金1项；参与国家自然科学基金重点项目2项，面上项目3项。共发表论文80余篇，SCI/SSCI检索近40篇。获得北京市科学技术奖三等奖1次（2012），北京市教学成果奖一等奖1次，二等奖1次。作为大会程序主席，组织举办国际学术会议13次。