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作者：Mills, Alex F.; Argon, Nilay Tanik; Ziya, Serhan
作者单位：Indiana University System; IU Kelley School of Business; Indiana University Bloomington; University of North Carolina; University of North Carolina Chapel Hill
摘要：T he most widely used standard for mass-casualty triage, START, relies on a fixed-priority ordering among different classes of patients, and does not explicitly consider resource limitations or the changes in survival probabilities with respect to time. We construct a fluid model of patient triage in a mass-casualty incident that incorporates these factors and characterize its optimal policy. We use this characterization to obtain useful insights about the type of simple policies that have a g...
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作者：Honhon, Dorothee; Seshadri, Sridhar
作者单位：Eindhoven University of Technology; University of Texas System; University of Texas Austin
摘要：We consider the problem of determining the optimal assortment of products to Offer in a given product category when each customer is characterized by a type, which is a list of products he is willing to buy in decreasing order of preference. We assume consumer-driven, dynamic, stockout-based substitution and random proportions of each type. No efficient method to obtain the optimal solution for this problem is known to our knowledge. However, if the number of customers of each type is a fixed ...
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作者：Ramdas, Kamalini; Williams, Jonathan; Lipson, Marc
作者单位：University of London; London Business School; University System of Georgia; University of Georgia; University of Virginia
摘要：We investigate whether stock price movements can inform operations managers as to where they should focus improvement efforts. We examine how unexpected performance along several dimensions of service quality-on-time performance, long delays and cancellations, lost bags, and denied boardings-impacts contemporaneous stock returns. Prior research suggests that airlines buffer their flight schedules and engage in expensive employee incentive programs to increase the likelihood of on-time arrival....
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作者：Afeche, Philipp
作者单位：University of Toronto
摘要：How should a firm design a price/lead-time menu and scheduling policy to maximize revenues from heterogeneous time-sensitive customers with private information about their preferences? We consider this question for a queueing system with two customer types and provide the following results. First, we develop a novel problem formulation and solution method that combines the achievable region approach with mechanism design. This approach extends to menu design problems for other systems. Second,...
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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...
