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作者：Choo, Adrian S.
作者单位：University System of Georgia; Georgia State University
摘要：This study examines how time spent in problem definition affects problem solving in projects such as Six Sigma projects. Our hypotheses are tested using data collected from 1558 Six Sigma projects in a company. The results show evidence of a U-shaped relationship between the amount of time spent in the Define phase and project duration. This finding suggests that spending too little time on problem definition potentially causes poor problem formulation, which leads to deficient problem solving...
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作者：Moritz, Brent; Siemsen, Enno; Kremer, Mirko
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Minnesota System; University of Minnesota Twin Cities
摘要：This research analyzes how individual differences affect performance in judgmental time-series forecasting. Decision makers with the ability to balance intuitive judgment with cognitive deliberation, as measured by the cognitive reflection test, tend to have lower forecast errors. This relationship holds when controlling for intelligence. Furthermore, forecast errors increase for very fast or very slow decisions. We provide evidence that forecast performance can be improved by manipulating dec...
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作者：Kretschmer, Andreas; Spinler, Stefan; Van Wassenhove, Luk N.
作者单位：WHU - Otto Beisheim School of Management; INSEAD Business School
摘要：School feeding is an established development aid intervention with multiple objectives including education, nutrition, and value transfer. Traditionally run by international organizations in low-income settings, school feeding programs have had a substantial impact in many less-developed countries. However, recent rethinking by the World Bank and the World Food Programme has prompted a shift toward long-term, sustainable solutions that rely more upon local resources, local capacity, and commun...
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作者：Cattani, Kyle D.; Souza, Gilvan C.; Ye, Shengqi
作者单位：Indiana University System; IU Kelley School of Business; Indiana University Bloomington
摘要：Online customers expect to wait, sometimes for a delay of many days. At the fulfillment center, there might be an opportunity to fill customer orders earlier than the due date through a cross-docking transaction: rather than picking the item from inventory, the item moves directly from the receiving to the shipping dock, saving shelving and picking transactions. While cross docking reduces shelving and picking costs, it risks changing customer expectations for how soon a product will be delive...
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作者：Gong, Xiting; Chao, Xiuli; Zheng, Shaohui
作者单位：Chinese University of Hong Kong; University of Michigan System; University of Michigan; Hong Kong University of Science & Technology
摘要：It is common for a firm to make use of multiple suppliers of different delivery lead times, reliabilities, and costs. In this study, we are concerned with the joint pricing and inventory control problem for such a firm that has a quick-response supplier and a regular supplier that both suffer random disruptions, and faces price-sensitive random demands. We aim at characterizing the optimal ordering and pricing policies in each period over a planning horizon, and analyzing the impacts of supply...
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作者：Mantin, Benny; Krishnan, Harish; Dhar, Tirtha
作者单位：University of Waterloo; University of British Columbia; Ontario Tech University
摘要：Retailers are increasingly adopting a dual-format model. In addition to acting as traditional merchants (buying and reselling goods), these retailers provide a platform for third-party (3P) sellers to access and compete for the same customers. We investigate the strategic rationale for a retailer to introduce a 3P marketplace. Our analysis provides insights into the growing prevalence of 3P marketplaces. We show that by committing to having an active 3P marketplace, the retailer creates an out...
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作者：Sodhi, ManMohan S.; Tang, Christopher S.
作者单位：City St Georges, University of London; University of California System; University of California Los Angeles
摘要：Floods are the most frequent category of disasters worldwide. Among all geographic regions, Asia has suffered the most. While there are several ongoing humanitarian efforts and initiatives, we believe there is a new opportunity to coordinate last mile humanitarian efforts in the event of a flood using micro-retailers. Because micro-retailers are the last mile nodes in traditional retail supply chains in many Asian countries, we propose the use of social enterprise to buttress these supply chai...
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作者：Kuo, Yong-Hong; Leung, Janny M. Y.; Yano, Candace A.
作者单位：Macau University of Science & Technology; Chinese University of Hong Kong; University of California System; University of California Berkeley; University of California System; University of California Berkeley
摘要：We address the problem of assigning airline customer service agents (CSAs) to tasks related to departing flights, such as selling tickets and collecting boarding cards, at an international terminal of a large airport. The airline specifies minimum and target levels of staff and required (or desired) types and levels of skills for each location in each time period. The assignment problem is complicated by staff heterogeneity, time required for moves between locations, and lunch and rest-break r...
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作者：Zhou, Zach Zhizhong; Johnson, M. Eric
作者单位：Shanghai Jiao Tong University; Vanderbilt University
摘要：Extended enterprises face many challenges in managing the product quality of their suppliers. Consequently characterizing the quality risk posed by value-chain partners has become increasingly important. There have been several recent efforts to develop frameworks for rating the quality risk posed by suppliers. We develop an analytical model to examine the impact of such quality ratings on suppliers, manufacturers, and social welfare. While it might seem that quality ratings would benefit high...
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作者：Liang, Chao; Sethi, Suresh P.; Shi, Ruixia; Zhang, Jun
作者单位：University of Texas System; University of Texas Dallas; California State University System; California State University Fullerton; Fudan University
摘要：We study a firm's optimal transshipment problem considering the impacts of setup costs for transshipment and demand distribution shapes. We assume that the demand follows a three-point distribution, which changes from a degenerate distribution, to a unimodal distribution, and to a bimodal distribution as the demand shape parameter increases. We find that as the demand shape parameter increases, the optimal transshipment strategy changes from no transshipment to transshipment, and finally to no...
