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作者：Li, Cuihong; Debo, Laurens G.
作者单位：University of Connecticut; University of Chicago
摘要：We study the decision of a manufacturer ( the buyer), expecting new sourcing opportunities in the future, in selecting between sole- and second-sourcing strategies for a noncommodity component. In a sole- sourcing strategy, the buyer commits to sourcing from a single supplier ( the incumbent) over the entire horizon. In a second-sourcing strategy, the buyer keeps the option open to source from a new supplier ( the entrant) in the future. Supplier costs are private information, and the incumben...
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作者：Gopal, Anandasivam; Gao, Guodong (Gordon)
作者单位：University System of Maryland; University of Maryland College Park
摘要：Third-party process certification programs such as the ISO 9001 and capability maturity model (CMM) have been widely adopted in recent years. In this study we employ three competing theoretical frameworks signaling, efficiency gains, and institutional theory-to analyze the motivations for a firm to acquire quality certification and the performance implications thereafter. We test these hypotheses in the context of CMM certification based on data from the Indian offshore IT services industry be...
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作者：Hendricks, Kevin B.; Singhal, Vinod R.
作者单位：Wilfrid Laurier University; University System of Georgia; Georgia Institute of Technology
摘要：This paper documents that excess inventory announcements, an indication of demand-supply mismatch, are associated with an economically and statistically significant negative stock market reaction. The results are based on a sample of 276 excess inventory announcements made during 1990-2002. Over a two-day period (the day of the announcement and the day before the announcement) the mean ( median) stock market reaction ranges from -6.79% to -6.93% (-4.51% to -4.79%), depending on the benchmark u...
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作者：Dobson, Gregory; Pinker, Edieal; Van Horn, R. Lawrence
作者单位：University of Rochester; Vanderbilt University
摘要：This paper examines the staffing, division of labor, and resulting profitability of primary care physician practices. Division of labor is viewed as a mechanism to increase the efficiency of production processes through specialization. At the same time, division of labor also introduces coordination cost as handoffs and communication needs increase. We attempt to empirically assess the net effect in primary care physician offices. We collected data from a sample of these practices and tested t...
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作者：Li, Yanzhi; Lim, Andrew; Rodrigues, Brian
作者单位：City University of Hong Kong; Singapore Management University
摘要：In this note, we study the concurrent determination of pricing and inventory replenishment decisions for a perishable product in an infinite horizon. Demands in consecutive periods are independent and influenced by prices charged in each period. In particular, we treat price as a decision variable to maximize the total discounted profit. We analyze the optimal solution-structure of a two-period lifetime problem and from insights gained in numerical experiments, develop a base-stock/list-price ...
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作者：Dawande, Milind; Pinedo, Michael; Sriskandarajah, Chelliah
作者单位：University of Texas System; University of Texas Dallas; New York University
摘要：We address the scheduling of operations in a robotic cell that produces multiple part-types. The objective is to obtain a cyclic schedule-a sequence of robot moves and an ordering of the parts-that minimizes the long-run average time to produce a part or, equivalently, maximizes the throughput. We consider two different models that are currently used in practice. The first is a single-gripper cell with a unit-capacity output buffer at each machine. The second is a bufferless dual-gripper cell....
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作者：Fu, Ke; Hsu, Vernon N.; Lee, Chung-Yee
作者单位：Sun Yat Sen University; George Mason University; University of New South Wales Sydney; Hong Kong University of Science & Technology
摘要：We consider a component acquisition problem for a contract manufacturer who faces a one-time stochastic demand for a single product consisting of a number of components. Components can be ordered early at normal prices before the demand is revealed, or they can be replenished later at higher prices due to expediting. In addition, the customer pays a price for the final product that is nonincreasing in the delivery lead time to discourage late delivery. We propose a cost-minimization model and ...
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作者：Gurvich, Itay; Whitt, Ward
作者单位：Columbia University; Columbia University
摘要：In a recent paper we introduced the queue-and-idleness ratio (QIR) family of routing rules for many-server service systems with multiple customer classes and server pools. A newly available server serves the customer from the head of the queue of the class (from among those the server is eligible to serve) whose queue length most exceeds a specified proportion of the total queue length. Under fairly general conditions, QIR produces an important state-space collapse as the total arrival rate an...
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作者：Lu, Lauren Xiaoyuan; Van Mieghem, Jan A.; Savaskan, R. Canan
作者单位：University of North Carolina; University of North Carolina Chapel Hill; Northwestern University
摘要：We study how rework routing together with wage and piece-rate compensation can strengthen incentives for quality. Traditionally, rework is assigned back to the agent who generates the defect (in a self-routing scheme) or to another agent dedicated to rework (in a dedicated routing scheme). In contrast, a novel cross-routing scheme allocates rework to a parallel agent performing both new jobs and rework. The agent who passes quality inspection or completes rework receives the piece rate paid pe...
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作者：Masini, Andrea; Van Wassenhove, Luk N.
作者单位：University of London; London Business School; INSEAD Business School
摘要：his paper contributes to the literature on enterprise resource planning (ERP) by pursuing two objectives. First, it identifies configurations of ERP adopters that have similar needs and develop similar competencies. Second, it tests the hypothesis that, to maximize benefits from their ERP projects, organizations should align their ERP competence-building mechanisms with the ERP needs that arise from their operational environment. The analysis of a sample of manufacturing companies that impleme...
