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作者：Chen, Liwen; Gilbert, Stephen M.; Xia, Yusen
作者单位：City University of Hong Kong; University of Texas System; University of Texas Austin; University System of Georgia; Georgia State University
摘要：In many industries, original equipment manufacturers (OEMs) must obtain critical components from a few powerful suppliers. To the extent that the OEMs are also concentrated, the interactions between the suppliers of critical components and the OEMs are strategic, and have implications for how an incumbent OEM chooses its product line and interacts with potential rivals. We demonstrate that, by adding a low-end product line extension, an OEM can induce a strategic supplier to offer more favorab...
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作者：Chen, Hongyu; Zheng, Zhiqiang (Eric); Ceran, Yasin
作者单位：California State University System; California State University Long Beach; University of Texas System; University of Texas Dallas; Santa Clara University
摘要：User-generated contents (UGC) in social media such as online reviews are inherently incomplete since we do not capture the opinions of users who do not write a review. These silent users may be systematically different than those who speak up. Such differences can be driven by users' differing sentiments toward their shopping experiences as well as their disposition to generate UGC. Overlooking silent users' opinions can result in a reporting bias. We develop a method to model users' UGC gener...
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作者：Xia, Hao; Dawande, Milind; Mookerjee, Vijay
作者单位：Harbin Institute of Technology; University of Texas System; University of Texas Dallas
摘要：The construction of a software system requires not only individual coding effort from team members to realize the various functionalities, but also adequate team coordination to integrate the developed code into a consistent, efficient, and bug-free system. On the one hand, continuous coding without adequate coordination can cause serious system inconsistencies and faults that may subsequently require significant corrective effort. On the other hand, frequent integrations can be disruptive to ...
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作者：Moshtari, Mohammad
作者单位：Hanken School of Economics
摘要：Donors and governments are increasingly calling for more collaborative relationships between humanitarian organizations (HOs), to improve the efficiency and effectiveness of humanitarian operations by exchanging information, knowledge, and resources. This study examines the relative efficacy of partners' characteristics (i.e., compatibility and resource complementarity) and partners' relationship management capability on collaborative relationships, incorporating mutual trust and reciprocal co...
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作者：Goh, Joel; Porteus, Evan L.
作者单位：Harvard University; Stanford University
摘要：We extend the Clark-Scarf serial multi-echelon inventory model to include procuring production inputs under short-term take-or-pay contracts at one or more stages. In each period, each such stage has the option to order/process at two different cost rates; the cheaper rate applies to units up to the contract quantity selected in the previous period. We prove that in each period and at each such stage, there are three base-stock levels that characterize an optimal policy, two for the inventory ...
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作者：Gopal, Ram; Hidaji, Hooman; Patterson, Raymond A.; Rolland, Erik; Zhdanov, Dmitry
作者单位：University of Connecticut; University of Alberta; University of Calgary; University of California System; University of California Merced
摘要：This study presents the formal problem definition and computational analysis of the network design improvements for idea and message propagation in both enterprise and consumer social networks (ESN and CSN, respectively). Message propagation in social networks is impacted by how messages are seeded in the network, and by propagation characteristics of the network topology itself. It has been recognized that the propagation properties of these networks can be actively influenced by network desi...
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作者：Bendoly, Elliot; Chao, Raul O.
作者单位：University System of Ohio; Ohio State University; University of Virginia
摘要：We empirically investigate how time reductions in particular product development stages impact market value. Using longitudinal project data from 107 firms, we compare stage times prior to and following investments in new product development process changes. Our analysis reveals a predominance of focus on time reduction in the late stages of product development. We also find support for the existence of an inverted-U relationship between market performance and time reductions for some of these...
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作者：Tong, Chunyang; Nagarajan, Mahesh; Cheng, Yuan
作者单位：Tongji University; University of British Columbia; Tsinghua University
摘要：Service quality is an important attribute that is used to characterize many service systems. In this study, we examine a service system with two consecutive steps that have shared resources. The service process consists of a base service (first step in the process) followed by a second step that adds additional value. We first look at a social surplus maximizing service provider (SP) who decides the optimal service capacity and re-optimizes in response to changes in the speed of service of the...
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作者：Gencosman, Burcu Caglar; Begen, Mehmet A.; Ozmutlu, Huseyin Cenk; Yilmaz, Imren Ozturk
作者单位：Uludag University; Western University (University of Western Ontario)
摘要：We consider scheduling issues at Beycelik, a Turkish automotive stamping company that uses presses to give shape to metal sheets in order to produce auto parts. The problem concerns the minimization of the total completion time of job orders (i.e., makespan) during a planning horizon. This problem may be classified as a combined generalized flowshop and flexible flowshop problem with special characteristics. We show that the Stamping Scheduling Problem is NP-Hard. We develop an integer program...
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作者：Netland, Torbjorn H.; Ferdows, Kasra
作者单位：Norwegian University of Science & Technology (NTNU); Georgetown University
摘要：There is currently no theory that explains the pattern of change in a plant's performance as it implements a lean program. Does it improve at a declining, increasing, or constant rate, or in some other pattern? We use empirical data from the implementation of the Volvo Group's lean program worldwide to develop a grounded theory to explain this pattern. We find that the pattern roughly follows an S-curve shape: as a plant progresses in its implementation of lean production, its operational perf...
