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作者:Hassin, Refael; Meilijson, Isaac; Perlman, Yael
作者单位:Tel Aviv University; Bar Ilan University
摘要:Problem definition: In a Markovian queueing system with strategic customers, a reward is gained from completing service, and a loss is incurred while waiting to be served. The common assumption in the queueing literature is that such loss is a function of the customer's waiting time. This paper takes a different and novel approach in that it models the customer's loss incurred because of negative network effects while waiting with others, which increases as the exposure to others increases. Me...
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作者:Mutlu, Nevin; El-Amine, Hadi; Sahin, Ozge
作者单位:Eindhoven University of Technology; George Mason University; Johns Hopkins University
摘要:Problem definition: In an environment where consumers' rising valuation of Instagrammable memories drives their spending from products to experiences, retailers offer experiences to attract consumers back to their stores. Yet, it is not obvious under which settings consumers can benefit from these experiences and raise retailers' profits.Methodology/results: We use a random utility model for consumer choice in both monopoly and duopoly settings. For the latter, we pose a game-theoretic model t...
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作者:Darby, Jessica L.; Ketchen Jr, David J.; Ball, George P.; Mukherjee, Ujjal
作者单位:Auburn University System; Auburn University; Auburn University System; Auburn University; Indiana University System; Indiana University Bloomington; IU Kelley School of Business; University of Illinois System; University of Illinois Urbana-Champaign
摘要:Problem definition: Firms often delay the decision to recall faulty medical devices long after they become aware of a defect, thereby putting public safety at height-ened risk. However, the factors contributing to these delays are not well-understood. To help address this gap, we examine whether and how CEO stock ownership influences the speed with which faulty medical devices are recalled and whether this influence varies with recall severity. We then examine whether the stock market penalize...
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作者:Zou, Fan; Dong, Yan; Song, Sining; Rungtusanatham, Manus
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of South Carolina System; University of South Carolina Columbia; University of Tennessee System; University of Tennessee Knoxville; York University - Canada
摘要:Problem definition: Suppliers are increasingly involved in innovation activities that contribute to a firm's product quality and introduce risks to firms' quality control, leading to quality failures and recalls. This quality trade-off suggests the possibility of a nonlinear relationship between supplier innovation and product recalls, which is the focus of this research. Recall literature focuses on firms' internal drivers of recalls, whereas anecdotal evidence increasingly points to the role...
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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