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作者：Chen, Yupeng; Iyengar, Garud; Wang, Chun
作者单位：Nanyang Technological University; Columbia University; Tsinghua University
摘要：Problem definition: We study the robust formulation of an inventory model with positive fixed ordering costs, where the unfulfilled demand is either backlogged or lost, the lead time is allowed to be positive, the demand is potentially intertemporally correlated, and the information about the demand distribution is limited. Methodology/results: We propose a robust cycle-based policy that manages inventory by dividing the planning horizon into nonoverlapping inventory cycles, where an order is ...
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作者：Guo, Pengfei; Haviv, Moshe; Luo, Zhenwei; Wang, Yulan
作者单位：City University of Hong Kong; The Chinese University of Hong Kong, Shenzhen; Shenzhen Research Institute of Big Data; Hebrew University of Jerusalem; Hebrew University of Jerusalem; Hong Kong Polytechnic University
摘要：Problem definition: We consider a single-server queueing system where service quality is either high or low. The server, who knows its exact quality level, can signal this quality information to customers by revealing or concealing its queue length. Based on this queue disclosure action and the observed queue length in the case of a revealed queue, customers decide whether to join the system. Academic/practical relevance: The queue disclosure action is regarded as a signal indicating the servi...
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作者：Liu, Sheng; Luo, Zhixing
作者单位：University of Toronto; Nanjing University
摘要：Problem definition: On-demand delivery has become increasingly popular around the world. Motivated by a large grocery chain store who offers fast on-demand delivery services, we model and solve a stochastic dynamic driver dispatching and routing problem for last-mile delivery systems where on-time performance is the main target. The system operator needs to dispatch a set of drivers and specify their delivery routes facing random demand that arrives over a fixed number of periods. The resultin...
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作者：Slaugh, Vincent W.; Scheller-Wolf, Alan A.
作者单位：Cornell University; Carnegie Mellon University
摘要：Problem definition: We consider the rostering decisions-that is, the assignment of workers scheduled for a shift to units-of a long-term care facility. The facility's objective is to minimize the monthly inconsistency level, a widely promoted quality metric representing the number of different caregivers working in each unit over one month. Methodology/results: We introduce simple rostering heuristics that prioritize either parttime or full-time workers and present a stochastic model of the re...
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作者：Wang, Mingzheng; Fang, Xin; Wang, Zizhuo; Chen, Ying-ju
作者单位：Zhejiang University; Singapore Management University; Hong Kong University of Science & Technology
摘要：Problem definition: In this paper, we explore how a firm's concern about profit distribution and the size of downstream firms in supply chains affect corporate social responsibility (CSR) investment strategy. Methodology/results: In a supply chain consisting of one supplier and one manufacturer, both players decide whether to invest to reduce CSR violations, and they negotiate over a wholesale price. Distributive comparison behavior makes the manufacturer compare the profit with his equitable ...
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作者：Agrawal, Narendra; Najafi-Asadolahi, Sami; Smith, Stephen A.
作者单位：Santa Clara University
摘要：Problem definition: Managers in ad agencies are responsible for delivering digital ads to viewers on behalf of advertisers, subject to the terms specified in the ad campaigns. They need to develop bidding policies to obtain viewers on an ad exchange and allocate them to the campaigns to maximize the agency's profits, subject to the goals of the ad campaigns. Academic/practical relevance: Determining a rigorous solution methodology is complicated by uncertainties in the arrival rates of viewers...
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作者：Das, Sagnik; Ravi, R.; Sridhar, Srinath
作者单位：Carnegie Mellon University
摘要：Problem definition: We consider the setting where a retailer with many physical stores and an online presence seeks to fulfill online orders using an omnichannel fulfillment program, such as buy-online ship-from-store. These fulfillment strategies try to minimize cost while fulfilling orders within acceptable service times. We focus on single-item orders. Typically, all online orders for the item are sent to a favorable set of locations to be filled. Failed trials are sent back for further sta...
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作者：Luo, Zhenwei; Guo, Pengfei; Wang, Yulan
作者单位：Hong Kong Polytechnic University; City University of Hong Kong
摘要：Problem Definition: This paper considers a setting in which an airline company sells seats periodically, and each period consists of two selling phases, an early-bird discount phase and a regular-price phase. In each period, when the early-bird discount seat is stocked out, an early-bird customer who comes for the discounted seat either purchases the regular-price seat as a substitute (called buy-up substitution) or simply leaves. Methodology/ Results: The optimal inventory level of the discou...
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作者：Li, Songtao; Lu, Lauren Xiaoyuan; Lu, Susan Feng; Huang, Simin
作者单位：Tsinghua University; Alibaba Group; Dartmouth College; Purdue University System; Purdue University
摘要：Problem definition: In brick-and-mortar fashion retail stores, inventory stockouts are frequent. When a specific size of a fashion product is out of stock, the unmet demand might not be completely lost because of spillovers to adjacent sizes of the same style or to other styles. Little research has been done to study consumer response to stockouts of fashion products because researchers had limited access to proprietary data of fashion retailers and because it is challenging to estimate stocko...
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作者：Alley, Michael; Biggs, Max; Hariss, Rim; Herrmann, Charles; Li, Michael Lingzhi; Perakis, Georgia
作者单位：University of Virginia; McGill University; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT)
摘要：Problem definition: We present a data-driven study of the secondary ticket market. In particular, we are primarily concerned with accurately estimating price sensitivity for listed tickets. In this setting, there are many issues including endogeneity, heterogeneity in price sensitivity for different tickets, binary outcomes, and nonlinear interactions between ticket features. Our secondary goal is to highlight how this estimation can be integrated into a prescriptive trading strategy for buyin...
