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作者：Song, Jing-Sheng; Zipkin, Paul
作者单位：Duke University
摘要：A supply stream is a continuous version of a supply chain. It is like a series inventory system, but stock can be held at any point along a continuum, not just at discrete stages. We assume stationary parameters and aim to minimize the long-run average total cost. We show that a stationary continuous-stage echelon base-stock policy is optimal. That is, at each geographic point along the supply stream, there is a target echelon inventory level, and the optimal policy at all times is to order an...
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作者：Sosa, Manuel E.; Mihm, Juergen; Browning, Tyson R.
作者单位：INSEAD Business School; INSEAD Business School; Texas Christian University
摘要：This paper examines the impact of architectural decisions on the level of defects in a product. We view products as collections of components linked together to work as an integrated whole. Previous work has established modularity (how decoupled a component is from other product components) as a critical determinant of defects, and we confirm its importance. Yet our study also provides empirical evidence for a relationship between product quality and cyclicality (the extent to which a componen...
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作者：Afeche, Philipp; Baron, Opher; Kerner, Yoav
作者单位：University of Toronto; Ben-Gurion University of the Negev
摘要：Services such as FedEx charge up-front fees but reimburse customers for delays. However, lead-time pricing studies ignore such delay refunds. This paper contributes to filling this gap. It studies revenue-maximizing tariffs that depend on realized lead times for a provider serving multiple time-sensitive customer types. We relax two key assumptions of the standard model in the lead-time pricing literature. First, customers may be risk averse (RA) with respect to payoff uncertainty, where payof...
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作者：Li, Hongmin; Armbruster, Dieter; Kempf, Karl G.
作者单位：Arizona State University; Arizona State University-Tempe; Arizona State University; Arizona State University-Tempe; Intel Corporation; Intel USA
摘要：In this paper, we consider the demand for multiple, successive generations of products and develop a population-growth model that allows demand transitions across multiple product generations and takes into consideration the effect of competition. We propose an iterative-descent method for obtaining the parameter estimates and the covariance matrix, and we show that the method is theoretically sound and overcomes the difficulty that the units-in-use population of each product is not observable...
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作者：Saure, Denis; Zeevi, Assaf
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Columbia University
摘要：We study a family of stylized assortment planning problems, where arriving customers make purchase decisions among offered products based on maximizing their utility. Given limited display capacity and no a priori information on consumers' utility, the retailer must select which subset of products to offer. By offering different assortments and observing the resulting purchase behavior, the retailer learns about consumer preferences, but this experimentation should be balanced with the goal of...
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作者：Wu, Xiaole; Kouvelis, Panos; Matsuo, Hirofumi
作者单位：Fudan University; Washington University (WUSTL); Kobe University
摘要：Motivated by the dual-sourcing and contracting practices in the semiconductor industry, we study two prevailing types of contracts that deal with horizontal-capacity-coordination issues between two possible sources: an integrated device manufacturer (IDM) and a foundry IDMs both design and manufacture semiconductor devices, whereas foundries concentrate only on manufacturing. Because production capacity is capital intensive, IDMs often make decisions on whether to manufacture each device inter...
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作者：Chan, Carri W.; Green, Linda V.; Lu, Yina; Leahy, Nicole; Yurt, Roger
作者单位：Columbia University; NewYork-Presbyterian Hospital; Cornell University; Weill Cornell Medical Center; Weill Cornell Medicine
摘要：The U. S. government has mandated that, in a catastrophic event, metropolitan areas need to be capable of caring for 50 burn-injured patients per million population. In New York City, this corresponds to 400 patients. There are currently 140 burn beds in the region, which can be surged up to 210. To care for additional patients, hospitals without burn centers will be used to stabilize patients until burn beds become available. In this work, we develop a new system for prioritizing patients for...
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作者：Rajagopalan, Sampath
作者单位：University of Southern California
摘要：Over the past six decades, numerous analytical models have been developed to determine optimal inventory levels. These models predict that inventories carried by a retailer should be a function of the product variety carried by the retailer, distribution system characteristics, economies of scale, etc. A few recent empirical studies have explored the impact of some of these factors on aggregate inventories at U. S. retailers. Building on these works, this study empirically explores the role of...
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作者：Dawande, Milind; Gavirneni, Srinagesh; Mehrotra, Mili; Mookerjee, Vijay
作者单位：University of Texas System; University of Texas Dallas; Cornell University; University of Minnesota System; University of Minnesota Twin Cities
摘要：The necessity of surface water for irrigation and its increasing scarcity in developing economies motivate the need for its efficient distribution. The inequity in the distribution of surface water arises because of the relative physical locations of the farms. Head-reach (primary) farms are close to the source, whereas tail-end (secondary) farms are relatively farther. The lack of physical infrastructure implies that water allocated to secondary farms must pass through primary farms. Left to ...
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作者：Lim, Michael K.; Bassamboo, Achal; Chopra, Sunil; Daskin, Mark S.
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; Northwestern University; University of Michigan System; University of Michigan
摘要：Supply chain disruptions come with catastrophic consequences in spite of their low probability of occurrence. In this paper, we consider a facility location problem in the presence of random facility disruptions where facilities can be protected with additional investments. Whereas most existing models in the literature implicitly assume that the disruption probability estimate is perfectly accurate, we investigate the impact of misestimating the disruption probability. Using a stylized contin...
