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作者：Yang, Liu; Guo, Pengfei; Wang, Yulan
作者单位：Tsinghua University; Hong Kong Polytechnic University
摘要：We consider a service system in which customers are loss averse toward both price and delay attributes. That is, customers compare these two attributes with their rational expectations of outcomes, with losses being more painful than equal-sized gains are pleasant. We first study customers' equilibrium queueing strategies. We find that, unlike the traditional case in which loss aversion is not considered, there may exist three equilibrium strategies, one of which is preferred m the sense that ...
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作者：Noyan, Nilay; Rudolf, Gabor
作者单位：Sabanci University; Koc University
摘要：It is of crucial importance to develop risk-averse models for multicriteria decision making under uncertainty. A major stream of the related literature studies optimization problems that feature multivariate stochastic benchmarking constraints. These problems typically involve a univariate stochastic preference relation, often based on stochastic dominance or a coherent risk measure such as conditional value-at-risk, which is then extended to allow the comparison of random vectors by the use o...
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作者：Ata, Baris; Peng, Xiaoshan
作者单位：University of Chicago
摘要：This paper studies a multiclass queueing system with endogenous abandonments where congestion affects customers' abandonment behavior, and vice versa. Our model captures this interaction by developing two closely related models: an abandonment model and a queueing model. In the abandonment model, customers take the virtual waiting time distribution as given. Class k customers receive a reward r(k) from service and incur a cost c(k) per period of waiting. Customers are forward looking and make ...
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作者：Farahat, Amr; Lee, Joonkyum
作者单位：Washington University (WUSTL); Sogang University
摘要：We address the multiproduct newsvendor problem under a general specification of customer choice behavior. We develop a methodology that yields upper bounds on the optimal value as well as feasible inventory solutions. The methodology is based on an approximate Jordan decomposition of the state transition matrix. Two specializations of the methodology are presented: one leads to a decomposition by customer into a sequence of assortment optimization problems and the second leads to a decompositi...
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作者：Capponi, Agostino; Cheng, W. Allen
作者单位：Columbia University
摘要：We model the decision problem faced by a profit-maximizing clearinghouse, which sets fee and margin requirements for heterogeneous traders who may default. We capture the main trade-offs underpinning the clearinghouse's choices: higher fee and better default protection come at the cost of decreased market volume. We show that the equilibrium margin requirements are determined not only by price volatility but also by trader fundamentals and funding costs. Our results (i) explain why margins are...
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作者：Carlsson, John Gunnar; Behroozi, Mehdi; Mihic, Kresimir
作者单位：University of Southern California; Northeastern University; Oracle
摘要：Recent research on the robust and stochastic traveling salesman problem and the vehicle routing problem has used many different approaches for describing the region of ambiguity including taking convex combinations of observed demand vectors or imposing constraints on the moments of the spatial demand distribution. One approach that has been used outside the transportation sector is the use of statistical metrics that describe a distance function between two probability distributions. Motivate...
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作者：Chen, Qiushi; Ayer, Turgay; Chhatwal, Jagpreet
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University System of Georgia; Georgia Institute of Technology; Harvard University; Harvard Medical School; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital
摘要：Hepatocellular carcinoma (HCC) is the most common type of liver cancer and the fastest-growing cause of cancer-related deaths in the United States. Most HCC cases are attributed to chronic hepatitis C virus infection, which affects nearly 3 million Americans and 100 million people globally. Although surveillance for HCC m hepatitis C patients can improve survival, the optimal surveillance policies remain unknown. In this study, we develop a mixed-integer programming (MlP)-based framework to sy...
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作者：Chen, Xin; Gao, Xiangyu; Pang, Zhan
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; Chinese University of Hong Kong; City University of Hong Kong
摘要：A common technical challenge encountered in many operations management models is that decision variables are truncated by some random variables and the decisions are made before the values of these random variables are realized, leading to non-convex minimization problems. To address this challenge, we develop a powerful transformation technique that converts a nonconvex minimization problem to an equivalent convex minimization problem. We show that such a transformation enables us to prove th...
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作者：Lee, Joosung
作者单位：University of Edinburgh
摘要：We introduce a new noncooperative multilateral bargaining model for network-restricted environments in which players can bargain only with their neighbors. The main theorem characterizes a condition on network structures for efficient equilibria. If the underlying network is either complete or circular, an efficient stationary subgame perfect equilibrium exists for all discount factors-all the players always try to reach an agreement as soon as practicable, and hence no strategic delay occurs....
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作者：Chen, Shi; Moinzadeh, Kamran
作者单位：University of Washington; University of Washington Seattle
摘要：We study an inventory system involving a contractor, who provides quotations of delivery times to customers, and suppliers, who stock prefabricated modules that the contractor will use to complete orders. The customers' decisions on whether to wait or leave depend on the quotations. This is an assembly system with partial lost sales, where the interaction between the quotation policy and the inventory policy is complicated. We consider either a uniform or an adaptive quotation policy and eithe...
