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作者：Broder, Josef; Rusmevichientong, Paat
作者单位：Cornell University; University of Southern California
摘要：We consider a stylized dynamic pricing model in which a monopolist prices a product to a sequence of T customers who independently make purchasing decisions based on the price offered according to a general parametric choice model. The parameters of the model are unknown to the seller, whose objective is to determine a pricing policy that minimizes the regret, which is the expected difference between the seller's revenue and the revenue of a clairvoyant seller who knows the values of the param...
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作者：Deng, Shaojie; Giesecke, Kay; Lai, Tze Leung
作者单位：Microsoft; Stanford University; Stanford University
摘要：We provide a sequential Monte Carlo method for estimating rare-event probabilities in dynamic, intensity-based point process models of portfolio credit risk. The method is based on a change of measure and involves a resampling mechanism. We propose resampling weights that lead, under technical conditions, to a logarithmically efficient simulation estimator of the probability of large portfolio losses. A numerical analysis illustrates the features of the method and contrasts it with other rare-...
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作者：Chen, Li; Lee, Hau L.
作者单位：Duke University; Stanford University
摘要：The bullwhip effect, or demand information distortion, has been a subject of both theoretical and empirical studies in the operations management literature. In this paper, we develop a simple set of formulas that describe the traditional bullwhip measure as a combined outcome of several important drivers, such as finite capacity, batch-ordering, and seasonality. Our modeling framework is descriptive in nature as it features certain plausible approximations that are commonly employed in practic...
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作者：Epstein, Rafael; Goic, Marcel; Weintraub, Andres; Catalan, Jaime; Santibanez, Pablo; Urrutia, Rodolfo; Cancino, Raul; Gaete, Sergio; Aguayo, Augusto; Caro, Felipe
作者单位：Universidad de Chile; University of California System; University of California Los Angeles
摘要：We present a methodology for long-term mine planning based on a general capacitated multicommodity network flow formulation. It considers underground and open-pit ore deposits sharing multiple downstream processing plants over a long horizon. The purpose of the model is to optimize several mines in an integrated fashion, but real size instances are hard to solve due to the combinatorial nature of the problem. We tackle this by solving the relaxation of a tight linear formulation, and we round ...
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作者：Bassamboo, Achal; Randhawa, Ramandeep S.; Van Mieghem, Jan A.
作者单位：Northwestern University; University of Southern California
摘要：We analytically study optimal capacity and flexible technology selection in parallel queuing systems. We consider N stochastic arrival streams that may wait in N queues before being processed by one of many resources (technologies) that differ in their flexibility. A resource's ability to process k different arrival types or classes is referred to as level-k flexibility. We determine the capacity portfolio (consisting of all resources at all levels of flexibility) that minimizes linear capacit...
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作者：Saghafian, Soroush; Hopp, Wallace J.; Van Oyen, Mark P.; Desmond, Jeffrey S.; Kronick, Steven L.
作者单位：Arizona State University; Arizona State University-Tempe; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan
摘要：Crisis-level overcrowding conditions in emergency departments (EDs) have led hospitals to seek out new patient-flow designs to improve both responsiveness and safety. One approach that has attracted attention and experimentation in the emergency medicine community is a system in which ED beds and care teams are segregated and patients are streamed based on predictions of whether they will be discharged or admitted to the hospital. In this paper, we use a combination of analytic and simulation ...
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作者：Canbolat, Pelin G.; Golany, Boaz; Mund, Inbal; Rothblum, Uriel G.
作者单位：Technion Israel Institute of Technology; Technion Israel Institute of Technology
摘要：The paper considers a race among multiple firms that compete over the development of a product. The first firm to complete the development gains a reward, whereas the other firms gain nothing. Each firm decides how much to invest in developing the product, and the time it completes the development is a random variable that depends on the investment level. The paper provides a method for explicitly computing a unique Nash equilibrium, parametrically in the interest rate; for a given interest ra...
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作者：Kouvelis, Panos; Zhao, Wenhui
作者单位：Washington University (WUSTL); Shanghai Jiao Tong University
摘要：We consider a supply chain with a retailer and a supplier: A newsvendor-like retailer has a single opportunity to order a product from a supplier to satisfy future uncertain demand. Both the retailer and supplier are capital constrained and in need of short-term financing. In the presence of bankruptcy risks for both the retailer and supplier, we model their strategic interaction as a Stackelberg game with the supplier as the leader. We use the supplier early payment discount scheme as a decis...
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作者：Iravani, Foad; Dasu, Sriram; Ahmadi, Reza
作者单位：University of Washington; University of Washington Seattle; University of Southern California; University of California System; University of California Los Angeles
摘要：Every year, companies that produce commercial tax preparation software struggle with thousands of state and federal changes to tax laws and forms. Three competitors dominate the market with its short selling season, and release delays slash profits. Tax authorities issue updates August December, and all changes must be processed and incorporated before year end. Systematic resource allocation and process manageinent are crucial yet problematic due to the volume and complexity of changes, brief...
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作者：Kalkanci, Basak; Erhun, Feryal
作者单位：Massachusetts Institute of Technology (MIT); Stanford University
摘要：This paper analyzes decentralized assembly systems under asymmetric demand information and sequential contracting. We reveal new insights on the value of contract type (price-only versus complex), demand information (complete versus asymmetric), and contract sequence (first mover versus second mover) to different players. Our results for the basic model show the following: (1) Complex contracts increase the suppliers' aggregate profit; however, individual suppliers do not necessarily benefit f...
