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作者：Jung, Kyung Sung; Geismar, H. Neil; Pinedo, Michael; Sriskandarajah, Chelliah
作者单位：State University System of Florida; University of Florida; Texas A&M University System; Texas A&M University College Station; Mays Business School; New York University
摘要：Many automated manufacturing systems use robotic cells, which consist of a set of machines served by a robot. Robotic cells with a single-gripper robot have been extensively studied in the literature. By contrast, cells with a dual-gripper robot, although more productive, have received less attention, perhaps because of their inherent complexity. We consider the problem of scheduling operations in dual-gripper robotic cells that have the machines configured in a circular layout and that produc...
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作者：Xu, Jiayan; Hsu, Vernon N.; Niu, Baozhuang
作者单位：Sun Yat Sen University; Chinese University of Hong Kong; South China University of Technology
摘要：Motivated by observations in the greater China region, this paper studies a multinational firm (MNF)'s preferences between two procurement strategies in a global business environment. The MNF relies on a contract manufacturer (CM) to produce its products, which serve both markets within (domestic market) and outside (overseas market) China. The MNF is assumed to be monopolistic in the overseas market but faces competition from a local original equipment manufacturer (OEM) who outsources both m...
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作者：Tian, Lin; Jiang, Baojun
作者单位：Shanghai University of Finance & Economics; Washington University (WUSTL)
摘要：In recent years, mobile communication technologies and online sharing platforms have made collaborative consumption among consumers a major trend in the economy. Consumers buy many products but end up not fully utilizing them. A product owner's self-use values can differ over time, and in a period of low self-use value, the owner may rent out her product in a product-sharing market. This study develops an analytical framework to study how consumer-to-consumer product sharing affects the distri...
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作者：Han, Xu; Yaraghi, Niam; Gopal, Ram
作者单位：State University System of Florida; Florida Atlantic University; University of Connecticut; Brookings Institution
摘要：The Nursing Home Compare system administrated by the Centers for Medicare & Medicaid Services (CMS) is widely used by patients, medical providers and payers. We argue that the rating system is prone to inflation in self-reported measures, which leads to biased and misleading ratings. We use the CMS rating data over 2009-2013 and the corresponding financial data reported by Office of Statewide Health Planning and Development and patients' complaints data reported by California Department of Pub...
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作者：Yan, Xiaoming
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS
摘要：This note complements the study of Burke, Carillo and Vakharia (hereafter referred to as BCV model), which investigates the implications of unreliable supplies on a firm's sourcing decisions under uniformly distributed demand. First, I present a sufficient condition under which the optimal quantity ordered from each supplier corresponds to the solution derived as BCV. Second, a heuristics is developed for the BCV model when the sufficient condition is not satisfied, and conduct numerical exper...
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作者：Perera, Sandun; Janakiraman, Ganesh; Niu, Shun-Chen
作者单位：University of Michigan System; University of Michigan Flint; University of Texas System; University of Texas Dallas
摘要：We study a single-stage, continuous-time inventory model where unit-sized demands arrive according to a renewal process and show that an (s,S) policy is optimal under minimal assumptions on the ordering/procurement and holding/backorder cost functions. To our knowledge, the derivation of almost all existing (s,S)-optimality results for stochastic inventory models assume that the ordering cost is composed of a fixed setup cost and a proportional variable cost; in contrast, our formulation allow...
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作者：Lee, Hsiao-Hui; Li, Cuihong
作者单位：University of Hong Kong; University of Connecticut
摘要：Buyers can manage product quality sourced from suppliers in three ways: they can improve the quality incoming from suppliers directly by investing in suppliers to improve a process/product, they can improve the incoming quality indirectly by incentivizing supplier quality-improvement efforts, and/or they can control the quality outgoing to subsequent processes by inspecting incoming units. In this study, we study a buyer's use of these three instrumentsinvestment, incentives, and inspectionto ...
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作者：Letizia, Paolo; Pourakbar, Morteza; Harrison, Terry
作者单位：University of Tennessee System; University of Tennessee Knoxville; Erasmus University Rotterdam - Excl Erasmus MC; Erasmus University Rotterdam; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要：Manufacturers adopt a variety of channels for the sale of their products in the attempt to deliver the highest possible value to end consumers. For instance, a manufacturers' retail arm provides consumers with the instant gratification of product purchase and the benefit of in-store shopping assistance, whereas their online arm offers potential benefits by selling to market segments that value shopping convenience, product variety, availability, and customization. The main difference between t...
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作者：Ibrahim, Rouba
作者单位：University of London; University College London
摘要：One prevalent assumption in queueing theory is that the number of servers in a queueing model is deterministic. However, randomness in the number of available servers often arises in practice, e.g., in virtual call centers where agents are allowed to set their own schedules. In this paper, we study the problems of staffing and controlling queueing systems with an uncertain number of servers and impatient customers. Because randomness in the number of servers creates congestion in the system, t...
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作者：Lawson, Benn; Pil, Frits K.; Holweg, Matthias
作者单位：University of Cambridge; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; University of Oxford
摘要：Empirical work on order fulfillment strategies suggests that building products to customer order is an important driver of organizational value. Similarly, the experimental literature indicates that customers derive value from customization. The modeling literature provides a more equivocal perspective, suggesting that a combination of build-to-forecast and build-to-order (BTO) fulfillment modalities may lead to the best system-wide outcomes. Using an industry studies approach, we build on the...
