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作者：Li, Zaile; Fan, Weiwei; Hong, L. Jeff
作者单位：Fudan University; Tongji University; Fudan University
摘要：Ranking and selection (R&S) aims to select the best alternative with the largest mean performance from a finite set of alternatives. Recently, considerable attention has turned toward the large-scale R&S problem which involves a large number of alternatives. Ideal largescale R&S procedures should be sample optimal; that is, the total sample size required to deliver an asymptotically nonzero probability of correct selection (PCS) grows at the minimal order (linear order) in the number of altern...
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作者：Blaettchen, Philippe; Calmon, Andre P.; Hall, Georgina
作者单位：University System of Georgia; Georgia Institute of Technology; INSEAD Business School
摘要：Modern traceability technologies promise to improve supply chain management by simplifying recalls, increasing visibility, and verifying sustainable supplier practices. Initiatives leading the implementation of traceability technologies must choose the least-costly set of firms-or seed set-to target for early adoption. Choosing this seed set is challenging because firms are part of supply chains interlinked in complex networks, yielding an inherent supply chain effect: benefits obtained from t...
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作者：Simon, Jay
作者单位：American University
摘要：This paper tests the efficiency of a set of sports betting markets using detailed betting line movement from opening until closing for four different sportsbooks for each of 3,681 Major League Baseball games. The reliability of the markets' forecasts are assessed at several lead times. The forecasts are mostly reliable, but there are simple betting strategies that would have yielded significant profit. In addition, forecasts do not always improve monotonically as the games get closer, despite ...
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作者：Ren, Jiayang; You, Ningning; Hua, Kaixun; Ji, Chaojie; Cao, Yankai
作者单位：University of British Columbia; Shanghai Jiao Tong University; University of British Columbia
摘要：This paper presents a practical global optimization algorithm for the K-center clustering problem, which aims to select K samples as the cluster centers to minimize the maximum within-cluster distance. Specifically, we propose a reduced-space branch and bound scheme that guarantees convergence to the global optimum in a finite number of steps by only branching on the regions of centers. To improve efficiency, we design a twostage decomposable lower bound, the solution of which can be derived i...
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作者：Nascimento, Arnaldo; Ng, Che Tat; Gonzalez, Richard
作者单位：University of Waterloo; University of Michigan System; University of Michigan
摘要：We introduce formal measures for two psychological factors of probabilistic risk attitudes: attractiveness (motivational factor) and discriminability (cognitive factor). Unlike previous approaches that relied on heuristic proxies, our measures precisely capture these two fundamental factors. Our measures are mathematically tractable, robust to discontinuities, such as in the NEO-additive case, and flexible to be applied to any weighting function, as well as to both small and large probabilitie...
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作者：Czura, Kristina; Englmaier, Florian; Ho, Hoa; Spantig, Lisa
作者单位：University of Groningen; University of Munich; University of Munich; RWTH Aachen University; University of Essex
摘要：The positive role of transformational leadership for productivity and mental well-being has long been established. Transformational leadership behavior may be particularly suited to navigate times of crisis that are characterized by high levels of complexity and uncertainty. We exploit quasi-random assignment of employees to managers and study the role of frontline managers' leadership styles on employees' performance, work style, and mental well-being in times of crisis. Using longitudinal ad...
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作者：Lefrere, Vincent; Warberg, Logan; Cheyre, Cristobal; Marotta, Veronica; Acquisti, Alessandro
作者单位：IMT - Institut Mines-Telecom; Institut Polytechnique de Paris; Telecom SudParis; Institut Mines-Telecom Business School; Carnegie Mellon University; Cornell University; Massachusetts Institute of Technology (MIT)
摘要：Concerns that the European General Data Protection Regulation (GDPR) would adversely affect the ability of news and media websites to create new quality content have not been thoroughly investigated in the literature. We construct a longitudinal data set of European Union (EU) and U.S. news and media websites to study how online content providers responded to the GDPR over time and whether potential restrictions on online tracking enforced by the regulation affected their downstream outcomes. ...
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作者：Greiner, Ben; Gruenwald, Philipp; Lindner, Thomas; Lintner, Georg; Wiernsperger, Martin
作者单位：Vienna University of Economics & Business; University of New South Wales Sydney; Vienna University of Economics & Business; Vienna University of Economics & Business; University of Innsbruck; Copenhagen Business School; Cornell University
摘要：Managerial decision makers are increasingly supported by advanced data analytics and other artificial intelligence (AI)-based technologies, but they are often found to be hesitant to follow the algorithmic advice. We examine how compensation contract design and framing of an AI algorithm influence decision makers' reliance on algorithmic advice and performance in a price estimation task. Based on a large sample of almost 1,500 participants, we find that compared with a fixed compensation, both...
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作者：Zhang, Wenchang; Elmaghraby, Wedad J.; Kabra, Ashish
作者单位：Indiana University System; Indiana University Bloomington; IU Kelley School of Business; University System of Maryland; University of Maryland College Park
摘要：In the race to establish themselves, many early-stage online marketplaces choose to accelerate their growth by adding marquee (established brand name) sellers. We study the implications of marquee seller entry on smaller, unbranded sellers in a marketplace when both unbranded sellers and marquee sellers can vary vertically across reputation (referred to as sellers' quality). Although recent literature has shown that higher-quality unbranded sellers fare better than their lower-quality peers, w...
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作者：Tomy, Rimmy E.; Wittenberg-Moerman, Regina
作者单位：University of Chicago; Northwestern University
摘要：Traders operating in informal economies tend to use nonaccounting metrics in their credit allocation decisions. By using a combination of survey questions and a hypothetical choice experiment, we explore wholesalers' preferences for retailers' accounting information and, importantly, the reasons for its limited use. Based on estimates of wholesalers' willingness to pay for retailer information, we find that, although wholesalers continue to value nonaccounting information such as retailers' co...
