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作者:Plambeck, Erica L.; Taylor, Terry A.
作者单位:Stanford University; University of California System; University of California Berkeley
摘要:A common characteristic of basic material manufacturers (which account for 85% of all industrial energy use) and of cleantech manufacturers is that they are price takers in their input and output markets. Variability in those prices has implications for how much a manufacturer should invest in three fundamental types of process improvement. Input price variability reduces the value of improving input efficiency (output produced per unit input) but increases that of capacity efficiency (the rat...
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作者:Agrawal, Vishal V.; Uelkue, Sezer
作者单位:Georgetown University
摘要:Modular upgradability has been suggested as a strategy for improving environmental performance: as technology improves, it allows for independent replacement of improving subsystems, instead of replacing the entire product. This may extend the useful life of stable subsystems, reducing production and disposal impact. However, this argument ignores the effect of modular upgradability on a firm's development and introduction decisions and the environmental impact during the use phase. In this pa...
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作者:Demeester, Lieven; Qi, Mei; Van Wassenhove, Luk N.
作者单位:Singapore Management University; National University of Singapore; INSEAD Business School
摘要:We use a modified optimal market area model to examine how links between material recycling and other aspects of operations strategy can shape plant networks for the processing of recyclable materials. We characterize the complementarity of the recyclate ratio, defined as the maximum recycled content, with material versatility and miniscaling of recycling plants. We also observe that it is beneficial to coordinate investments in recycling-and production-related competencies because colocated r...
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作者:Drake, David F.; Spinler, Stefan
作者单位:Harvard University; WHU - Otto Beisheim School of Management
摘要:Paul Kleindorfer was among the first to weigh in on and nurture the stream of sustainable operations management. The thoughts laid out here are based on conversations we had with Paul relating to the drivers underlying sustainability as a management issue: population and per capita consumption growth, the limited nature of resources and sinks, and the responsibility and exposure of firms to ensuing ecological risks and costs. We then discuss how an operations management lens contributes to the...
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作者:Wu, Owen Q.; Kapuscinski, Roman
作者单位:University of Michigan System; University of Michigan
摘要:Energy generation from intermittent renewable sources introduces additional variability into electrical systems, resulting in a higher cost of balancing against the increased variabilities. Ways to balance demand and supply for electricity include using flexible generation resources, storage operations, and curtailing intermittent generation. This paper focuses on the operational and environmental impact of curtailing intermittent generation. We construct a stochastic dynamic optimization mode...
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作者:Kraft, Tim; Zheng, Yanchong; Erhun, Feryal
作者单位:University of Virginia; Massachusetts Institute of Technology (MIT); Stanford University
摘要:We study a nongovernmental organization's (NGO's) decisions when it attempts to remove a potentially hazardous substance from commercial use in a market with competing firms. Specifically, we determine under what market and regulatory conditions an NGO should target the industry versus the regulatory body to influence firms to replace the substance. We examine how the NGO's strategy changes as the NGO's pragmatism (i.e., the extent to which the NGO incorporates firms' profits into its decision...
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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,...