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作者:Malladi, Vishwakant; Mendoza-Arriaga, Rafael; Tompaidis, Stathis
作者单位:Indian School of Business (ISB); University of Texas System; University of Texas Austin
摘要:We propose a framework to model dependence of outages of electric power plants. Our framework allows for common factors, such as weather events and fuel shortages, to drive outages. We calibrate our model for power plants in the Electric Reliability Council of Texas and the Western Electricity Coordinating Council regions using a unique data set of actual outages from the North American Electric Reliability Corporation. We find strong evidence of dependence in power plant outages based on the ...
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作者:Blum, Avrim; Dickerson, John P.; Haghtalab, Nika; Procaccia, Ariel D.; Sandholm, Tuomas; Sharma, Ankit
作者单位:Toyota Technological Institute - Chicago; University System of Maryland; University of Maryland College Park; Microsoft; Carnegie Mellon University; Carnegie Mellon University
摘要:We study the stochastic matching problem with the goal of finding a maximum matching in a graph whose edges are unknown but can be accessed via queries. This is a special case of stochastic k-cycle packing, in which the problem is to find a maximum packing of cycles, each of which exists with some probability. We provide polynomial-time adaptive and nonadaptive algorithms that provably yield a near-optimal solution, using a number of edge queries that is linear in the number of vertices. We ar...
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作者:Cai, Desmond; Agarwal, Anish; Wierman, Adam
作者单位:California Institute of Technology; California Institute of Technology; California Institute of Technology; California Institute of Technology
摘要:Motivated by electricity markets, this paper studies the impact of forward contracting in situations where firms have capacity constraints and heterogeneous production lead times. We consider a model with two types of firms-leaders and followers-that choose production at two different times. Followers choose productions in the second stage but can sell forward contracts in the first stage. Our main result is an explicit characterization of the equilibrium outcomes. Classic results on forward c...
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作者:Bagaria, Vivek; Ding, Jian; Tse, David; Wu, Yihong; Xu, Jiaming
作者单位:Stanford University; University of Pennsylvania; Yale University; Duke University
摘要:We introduce the problem of hidden Hamiltonian cycle recovery, where there is an unknown Hamiltonian cycle in an n-vertex complete graph that needs to be inferred from noisy edge measurements. The measurements are independent and distributed according to P-n for edges in the cycle and Q(n) otherwise. This formulation is motivated by a problem in genome assembly, where the goal is to order a set of contigs (genome subsequences) according to their positions on the genome using long-range linking...
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作者:Saghafian, Soroush; Hopp, Wallace
作者单位:Harvard University; University of Michigan System; University of Michigan
摘要:Public reporting of medical treatment outcomes is being widely adopted by policymakers in an effort to increase quality transparency and improve alignment between patient choices and provider capabilities. We examine the soundness of this approach by studying the effects of quality transparency on patient choices, hospital investments, societal outcomes (e.g., patients' social welfare and inequality), and the healthcare market structure (e.g., medical or geographical specialization). Our resul...
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作者:Minca, Andreea; Wissel, Johannes
作者单位:Cornell University
摘要:We introduce a new mechanism for leverage dynamics, based on a multiperiod game of lenders with differentiated beliefs about the firm's fundamental returns. The game features strategic substitutability for low existing leverage and strategic complementarily for high existing leverage. The resulting leverage process exhibits a mean-reverting regime around a long-run level, as long as it stays below an instability level. Above the instability level, leverage becomes explosive. We validate our mo...
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作者:Li, Hongmin
作者单位:Arizona State University; Arizona State University-Tempe
摘要:We develop a solution approach to the centralized pricing problem of a firm managing multiple substitutable products. Demand of these products undergoes a diffusion process, and customers choose among the products, with the choice probability of each product given by the logit model. We examine the firm's optimal pricing problem when product demand can be described by such diffusion-choice models. In particular, we focus on two models with proven merits and study a generalized version of the t...
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作者:Gallego, Guillermo; Li, Anran; Van-Anh Truong; Wang, Xinshang
作者单位:Hong Kong University of Science & Technology; University of London; London School Economics & Political Science; Columbia University; Alibaba Group; Shanghai Jiao Tong University
摘要:We propose one of the first models of product framing and pricing. Product framing refers to the way consumer choice is influenced by how the products are framed or displayed. We present a model in which a set of products is displayed or framed into a set of virtual web pages. We assume that consumers consider only products in the top pages with different consumers willing to see different numbers of pages. Consumers select a product, if any, from these pages following a general choice model. ...
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作者:van der Gaast, Jelmer P.; de Koster, Rene B. M.; Adan, Ivo J. B. F.; Resing, Jacques A. C.
作者单位:Fudan University; Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC
摘要:This paper develops a capacity model for sequential zone picking systems. These systems are popular internal transport and order-picking systems because of their scalability, flexibility, high-throughput ability, and fit for use for a wide range of products and order profiles. The major disadvantage of such systems is congestion and blocking under heavy use, leading to long order throughput times. To reduce blocking and congestion, most systems use the block-and-recirculate protocol to dynamic...
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作者:Paradiso, Rosario; Roberti, Roberto; Lagana, Demetrio; Dullaert, Wout
作者单位:University of Calabria; Vrije Universiteit Amsterdam; University of Calabria
摘要:Multitrip vehicle-routing problems (MTVRPs) generalize the well-known VRP by allowing vehicles to perform multiple trips per day. MTVRPs have received a lot of attention lately because of their relevance in real-life applications-for example, in city logistics and last-mile delivery. Several variants of the MTVRP have been investigated in the literature, and a number of exact methods have been proposed. Nevertheless, the computational results currently available suggest that MTVRPs with differ...