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作者：Jiang, Yangzi; Mehrizi, Hossein Abouee; Van Mieghem, Jan A.
作者单位：The Chinese University of Hong Kong, Shenzhen; University of Waterloo; Northwestern University
摘要：Problem definition: Patient-level data from 72 magnetic resonance imaging (MRI) hospitals in Ontario, Canada from 2013 to 2017 show that over 60% of patients exceeded their wait time targets. We conduct a data-driven analysis to quantify the reduction in the patient fraction exceeding (FET) target for MRI services through geographic virtual resource-sharing while limiting incremental driving time. We present a data driven method to solve the geographic pooling problem of partitioning 72 hospit...
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作者：Kouvelis, Panos; Liu, Ye; Qiu, Yunzhe; Turcic, Danko
作者单位：Washington University (WUSTL); Peking University; University of California System; University of California Riverside
摘要：Problem definition: We study a dynamic finishing-stage planning problem of a pork producer who at the beginning of each week gets to see how many market-ready hogs she has available for sale and the current market prices. Then, she must decide which hogs to sell to a meatpacker and on the open market and which hogs to hold until the following week. The farmer is contracted to deliver a fixed quantity of hogs to the meatpacker each week priced according to a contractually predetermined market i...
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作者：Glazer, Amihai; Hassin, Refael; Nowik, Irit
作者单位：University of California System; University of California Irvine; Tel Aviv University; Jerusalem College of Technology
摘要：Problem definition: Consider consumers who prefer to consume a good later rather than earlier. If the price is constant, then we would expect consumers to wait to buy the good. That does not hold if consumers are concerned that others will buy the good early, so that a shortage will later occur. When will consumers arrive when they fear a shortage? What is the profit-maximizing policy of a monopolist? Might the firm lose profits by offering advance sales? The timing of consumer arrivals is muc...
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作者：Bi, Sheng; He, Long; Teo, Chung Piaw
作者单位：Shanghai University of Finance & Economics; George Washington University; National University of Singapore
摘要：Problem definition: Long tail products with intermittent demand often tie up valuable warehouse space and capital investment for many companies. Furthermore, the paucity of demand data poses additional challenges for model estimation and performance evaluation. Traditional inventory solutions are not designed for products with intermittent demand. In this paper, we propose a new framework to optimize the choice of replenishment timing and replenishment quantity for managing the inventory metri...
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作者：Ma, Will
作者单位：Columbia University
摘要：Problem definition: We study the dynamic fulfillment problem in e-commerce, in which incoming (multi-item) customer orders must be immediately dispatched to (a combination of) fulfillment centers that have the required inventory. Methodology/results: A prevailing approach to this problem, pioneered by Jasin and Sinha in 2015, has been to write a deterministic linear program that dictates, for each item in an incoming multi-item order from a particular region, how frequently it should be dispat...
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作者：Allon, Gad
作者单位：University of Pennsylvania
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作者：Pacheco, Sindy De La Torre; Eftekhar, Mahyar; Wu, Chao
作者单位：Arizona State University; Arizona State University-Tempe
摘要：Problem definition: Although in-kind donations contribute to charity's triple bottom line (i.e., generating additional revenue for the charity, contributing to social welfare, and reducing environmental waste through rechanneling used items), inappropriate material donations impose additional costs to sort, process, or discard them. Minimizing the amount of undesired in-kind donations, however, is a challenge given charities' sensitive relationship with their donors. This paper examines the ef...
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作者：Akshat, Shubham; Ma, Liye; Raghavan, S.
作者单位：Carnegie Mellon University; University System of Maryland; University of Maryland College Park; University System of Maryland; University of Maryland College Park
摘要：Problem definition: This paper studies the deceased-donor liver allocation policies in the United States. In the transplant community, broader organ sharing is believed to mitigate geographic inequity (intergeographic variation in transplant rates, patient survival rates, waiting times, and offers) in organ access, and recent policies are moving in that direction in principle. The liver-allocation policy has gone through two major modifications in the last 10 years. Despite these overhauls, ge...
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作者：Arora, Siddharth; Taylor, James W.; Mak, Ho-Yin
作者单位：University of Oxford; Georgetown University
摘要：Problem definition: We study the estimation of the probability distribution of individual patient waiting times in an emergency department (ED). Whereas it is known that waiting-time estimates can help improve patients' overall satisfaction and prevent abandonment, existing methods focus on point forecasts, thereby completely ignoring the underlying uncertainty. Communicating only a point forecast to patients can be uninformative and potentially misleading. Methodology/results: We use the mach...
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作者：Shamir, Noam; Yehezkel, Yaron
作者单位：Tel Aviv University
摘要：Problem definition: We study a repeated interaction between a manufacturer and a retailer, where the retailer may share with the manufacturer past sales information. In our model, such information cannot improve the latter's predictive capabilities of future demand, but it does allow him to infer past demand. Academic/practical relevance: Our main research questions are under what conditions the retailer and the manufacturer benefit from sharing such past sales information and how dynamic inte...
