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作者:de Boer, PT; Kroese, DP; Rubinstein, RY
作者单位:University of Twente; University of Queensland; Technion Israel Institute of Technology
摘要:In this paper, we propose a fast adaptive importance sampling method for the efficient simulation of buffer overflow probabilities in queueing networks. The method comprises three stages. First, we estimate the minimum cross-entropy tilting parameter for a small buffer level; next, we use this as a starting value for the estimation of the optimal tilting parameter for the actual (large) buffer level. Finally, the tilting parameter just found is used to estimate the overflow probability of inte...
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作者:Talluri, K; van Ryzin, G
作者单位:Pompeu Fabra University; Columbia University
摘要:Customer choice behavior, such as buy-up and buy-down, is an important phenomenon in a wide range of revenue management contexts. Yet most revenue management methodologies ignore this phenomenon - or at best approximate it in a heuristic way. In this paper, we provide an exact and quite general analysis of this problem. Specifically, we analyze a single-leg reserve management problem in which the buyers' choice behavior is modeled explicitly. The choice model is very general, simply specifying...
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作者:Mishra, BK; Raghunathan, S
作者单位:University of Texas System; University of Texas Dallas
摘要:Vendor-managed inventory (VMI) is emerging as a significant development in the recent trend towards collaboration and information sharing in supply chain management. Transfer of inventory monitoring and other overhead costs to manufacturers and continuous replenishment of retailer inventory are commonly cited as potential benefits that VMI offers to retailers. We provide a new explanation in this paper for why retailers might be interested in VMI. We show that VMl intensifies the competition b...
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作者:Carrillo, JE; Gaimon, C
作者单位:State University System of Florida; University of Florida; University System of Georgia; Georgia Institute of Technology
摘要:A firm's ability to manage its knowledge-based resource capabilities has become increasingly important as a result of performance threats triggered by technology change and intense competition. At the manufacturing plant level, we focus on three repositories of knowledge that drive performance. First, the physical production or information systems represent knowledge embedded in the plant's technical systems. Second, the plant's workforce has knowledge, including diverse scientific information...
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作者:Stern, S
作者单位:Northwestern University; National Bureau of Economic Research
摘要:his paper explores the relationship between wages and the scientific orientation of R&D organizations. Firms that adopt a science-oriented research approach (i.e., science) allow their researchers to pursue and publish an individual research agenda. The adoption of science may be associated with a taste for science on the part of researchers (a preference effect) and/or as a ticket of admission to gain earlier access to scientific discoveries with commercial application (a productivity effect)...
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作者:Steckel, JH; Gupta, S; Banerji, A
作者单位:New York University
摘要:Using a simulated supply chain experiment based on the well-known beer game, we examine how changes in order and delivery cycles, availability of shared point-of-sale (POS) information, and the pattern of customer demand affect supply chain efficiency. We find that speeding up cycle time is beneficial, but the sharing of POS information is not necessarily so. Whether or not the sharing of POS information is beneficial depends on the nature of the demand pattern represented by the POS informati...
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作者:Moe, WW; Fader, PS
作者单位:University of Texas System; University of Texas Austin; University of Pennsylvania
摘要:T his paper develops a model of conversion behavior (i.e., converting store visits into purchases) that predicts each customer's probability of purchasing based on an observed history of visits and purchases. We offer an individual-level probability model that allows for different forms of customer heterogeneity in a very flexible manner. Specifically, we decompose an individual's conversion behavior into two components: one for accumulating visit effects and another for purchasing threshold e...
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作者:Bollapragada, R; Rao, US; Zhang, J
作者单位:California State University System; San Francisco State University; AT&T; Alcatel-Lucent; Lucent Technologies; University System of Ohio; University of Cincinnati; Tulane University
摘要:We consider stock positioning in a pure assembly system controlled using installation base-stock policies. When component suppliers have random capacity and end-product demand is uncertain, we characterize the system's inventory dynamics. We show that components and, the, end product. play convex complementary roles in providing customer service. We propose a decomposition approach that uses an internal service level to independently determine near-optimal stock levels for each component. Comp...
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作者:Kalnins, A; Mayer, KJ
作者单位:University of Southern California
摘要:We hypothesize that retail and service business units will enjoy reduced failure rates if affiliated with experienced multiunit owners and franchisors. Experience of individual owners and franchisees should result in knowledge that is tacit-and idiosyncratic and thus primarily of value locally Because franchisors typically codify knowledge gained from experience, we argue that units should benefit from both local and distant experience of their franchisor. Using Texan pizza restaurant failure ...
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作者:Bernstein, F; DeCroix, GA
作者单位:Duke University
摘要:We model a modular assembly system in which a final assembler outsources some of the assembly task to first-tier suppliers (subassemblers), who produce modules made up of multiple components. The assembler sets module prices it will pay to the subassemblers, the subassemblers set component prices they will pay to suppliers, and then all players choose how much capacity to install, with the minimum capacity choice determining system capacity. Finally, stochastic end-product demand is observed a...