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作者:Chambers, Chester; Kouvelis, Panagiotis
作者单位:Southern Methodist University; Washington University (WUSTL)
摘要:We perform an analysis of various queueing systems with an emphasis on estimating a single performance metric. This metric is defined to be the percentage of customers whose actual waiting time was less than their individual waiting time threshold. We label this metric the Percentage of Satisfied Customers (PSC.) This threshold is a reflection of the customers' expectation of a reasonable waiting time in the system given its current state. Cases in which no system state information is availabl...
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作者:Anderson, Edward G., Jr.; Morrice, Douglas J.; Lundeen, Gary
作者单位:University of Texas System; University of Texas Austin
摘要:Motivated by an oilfield services industry case study, we investigate the dynamic behavior of customized service supply chains by developing a two-stage serial staffing model. Each stage holds no finished goods inventory, but rather only backlogs that can be managed by adjusting staffing levels. We develop optimal control policies to balance backlog costs against hiring and firing personnel costs-assuming shared backlog information-under both centralized and decentralized control. We examine w...
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作者:Bakal, Ismail Serdar; Akcali, Elif
作者单位:State University System of Florida; University of Florida; State University System of Florida; University of Florida
摘要:In this study, we investigate the effects of recovery yield rate on pricing decisions in reverse supply chains. Motivated by the automotive parts remanufacturing industry, we consider an end-of-life product from which a particular part can be recovered and remanufactured for reuse, and the remainder of the product can be recycled for material recovery. Both the supply of end-of-life products and demand for remanufactured parts are price-sensitive. Yield of the recovery process is random and de...
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作者:Georgiadis, Patroklos; Vlachos, Dimitrios; Tagaras, George
作者单位:Aristotle University of Thessaloniki
摘要:Product recovery operations in reverse supply chains face rapidly changing demand due to the increasing number of product offerings with reduced lifecycles. Therefore, capacity planning becomes a strategic issue of major importance for the profitability of closed-loop supply chains. This work studies a closed-loop supply chain with remanufacturing and presents dynamic capacity planning policies developed through the methodology of System Dynamics. The key issue of the paper is how the lifecycl...
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作者:Boyer, Kenneth K.; Frohlich, Markham T.
作者单位:Michigan State University; Boston University
摘要:Many retailers are increasingly turning to home delivery as a new arena of operational competition. This study controlled for industry by investigating the online home delivery grocery business, and an analysis of 1,919 customers of home delivery grocers identified four groups of online customers based on reasons for selecting this service. These four groups were next linked to operational execution in terms of service, product, and Internet quality, and found to vary in predicable ways. Subse...
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作者:Hays, Julie M.; Hill, Arthur V.
作者单位:University of St Thomas Minnesota; University of Minnesota System; University of Minnesota Twin Cities
摘要:This paper examines the long-term effects of a service guarantee on employee motivation, learning through service failure, and customer intention to return. Service guarantees have been hypothesized to positively affect customer perception of service quality (and/or customer intention to return) through their positive effect on both learning through service failure and employee motivation. However, there has been no long-term study of these effects. A longitudinal, empirical study was conducte...
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作者:Guide, V. Daniel R., Jr.; Van Wassenhove, Luk N.
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; INSEAD Business School
摘要:Closed-loop supply chains (CLSC) have product returns at the center of attention. Our view is that CLSC are best managed from a business perspective where organizations seek to maximize value recovery. The research in the feature issue, and our experiences, shows that there are still numerous, unresolved, managerially relevant issues that deserve further investigation. We also observe that there is a pressing need to validate the assumptions in our models using interdisciplinary, industry-driv...
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作者:de Matta, Renato; Hsu, Vernon Ning
作者单位:University of Iowa; George Mason University
摘要:This study presents a multi-period deterministic capacity planning problem with age-dependent capacity deterioration, i.e., the rate of deterioration for a capacity in a certain period depends on the time the capacity is acquired. Our problem has a number of general features such as demand fluctuation, operating and maintenance costs that depend on the amount of capacity utilized, capacity disposal, and capacity shortage. Formulated as a mixed integer programming model, we are able to exploit ...
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作者:Galbreth, Michael R.; Blackburn, Joseph D.
作者单位:University of South Carolina System; University of South Carolina Columbia; Vanderbilt University
摘要:The condition of the used items acquired by remanufacturers is often highly variable, and sorting is an important aspect of remanufacturing operations. Sorting policies-the rules specifying which used products should be remanufactured and which should be scrapped-have received limited attention in the literature. In this paper, we examine the case of a remanufacturer who acquires unsorted used products as needed from third party brokers. As more used items are acquired for a given demand, the ...
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作者:Ketzenberg, Michael E.; van der Laan, Erwin; Teunter, Ruud H.
摘要:We explore the value of information (VOI) in the context of a firm that faces uncertainty with respect to demand, product return, and product recovery (yield). The operational decision of interest in matching supply with demand is the quantity of new product to order. Our objective is to evaluate the VOI from reducing one or more types of uncertainties, where value is measured by the reduction in total expected holding and shortage costs. We start with a single period model with normally distr...