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作者：de Matos, Miguel Godinho; Ferreira, Pedro; Krackhardt, David
作者单位：Carnegie Mellon University; Universidade Catolica Portuguesa; Carnegie Mellon University
摘要：In this paper, we study the effect of peer influence in the diffusion of the iPhone 3G across a number of communities sampled from a large dataset provided by a major European Mobile carrier in one country. We identify tight communities of users in which peer influence may play a role and use instrumental variables to control for potential correlation between unobserved subscriber heterogeneity and friends' adoption. We provide evidence that the propensity of a subscriber to adopt increases wi...
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作者：Hao, Lin; Fan, Ming
作者单位：University of Notre Dame; University of Washington; University of Washington Seattle
摘要：In this paper, we develop a game theoretic model to study the pricing of e-books and e-readers under two pricing models: wholesale and agency. We analyze pricing strategies for a publisher and a retailer. We identify the complementary relationship between e-books and e-readers as the main reason for the retailer to set a low e-book price in the wholesale model. Comparing the wholesale and the agency models, we find, in a wide range of market conditions, the price for e-book readers is lower in...
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作者：Pang, Min-Seok; Tafti, Ali; Krishnan, M. S.
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Temple University; University of Illinois System; University of Illinois Chicago; University of Illinois Chicago Hospital; University of Michigan System; University of Michigan
摘要：This paper explores value creation from government use of information technologies (IT). While the majority of studies in the information systems (IS) discipline have focused on discovering IT business value in for-profit organizations, the performance effects of IT in the public sector have not been extensively studied in either the IS or the public administration literature. We examine whether IT improves administrative efficiency in U. S. state governments. Utilizing IT budget data in state...
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作者：Koh, Tat Koon; Fichman, Mark
作者单位：Hong Kong University of Science & Technology; Carnegie Mellon University
摘要：Online business-to-business (B2B) exchanges are proliferating, giving firms numerous platforms from which to choose. Many firms are also multihoming, using competing platforms concurrently. In this study, we examine how selling and buying activities on B2B exchanges affect multihoming buyers' preferences for exchanges. We posit that these activities influence buyers' perceived returns and risks of using the exchanges, and impact buyers' preferences. Using a unique dataset of 118 buyers' partic...
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作者：Kumar, Anuj; Smith, Michael D.; Telang, Rahul
作者单位：State University System of Florida; University of Florida; Carnegie Mellon University
摘要：Recent papers have shown that, in contrast to the long tail theory, movie sales remain concentrated in a small number of hits. These papers have argued that concentrated sales can be explained, in part, by heterogeneity in quality and increasing returns from social effects. Our research analyzes an additional explanation: how incomplete information may skew sales patterns. We use the movie broadcast on pay-cable channels as an exogenous shock to the availability of information, and analyze how...
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作者：Aakhus, Mark; Agerfalk, Par J.; Lyytinen, Kalle; Te'eni, Dov
作者单位：Rutgers University System; Rutgers University New Brunswick; Uppsala University; University System of Ohio; Case Western Reserve University; Tel Aviv University
摘要：This special issue introduction explores the need to study information systems as symbolic action systems, defines broadly the research domain and related assumptions, notes the origins of this perspective, articulates its key lines of study, and discusses the state of the field in light of published research. The essay also positions the three papers of the special issue in the broader Information Systems (IS) discourse and notes their specific contribution in bridging so far unconnected stre...
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作者：Chou, Chen-Huei; Zahedi, Fatemeh Mariam; Zhao, Huimin
作者单位：College of Charleston; University of Wisconsin System; University of Wisconsin Milwaukee
摘要：In recent years, the world has witnessed a number of severe natural disasters, causing heavy losses to families, communities, and even nations. Natural disaster management (NDM) websites play an important role in assisting people through various disaster stages. However, such websites are complex and there is little research on standards and guidelines for their development and evaluation. In this paper, we develop an ontology-based evaluation tool to assess the utility of NDM websites. Two ma...
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作者：Goes, Paulo B.
作者单位：University of Arizona
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作者：Beck, Roman; Pahlke, Immanuel; Seebach, Christoph
作者单位：IT University Copenhagen; Goethe University Frankfurt
摘要：Organizational knowledge is one of the most important assets of an enterprise. Therefore, many organizations invest in enterprise social media (ESM) to establish electronic networks of practice and to foster knowledge exchange among employees. ESM improves interaction transparency and can be regarded as a sociotechnical system that provides a language for communication and symbolic action as well as a better sense of others' social identity. Accordingly, the individual characteristics of knowl...
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作者：Nan, Ning; Lu, Yong
作者单位：University of British Columbia; Southwestern University of Finance & Economics - China; Southwestern University of Finance & Economics - China; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University
摘要：Organizational crisis management has traditionally favored a centralized plan-and-control approach. This study explores the possibility for an orderly crisis management process to arise unintentionally from decentralized and spontaneous actions in an online community (i.e., self-organization). Based on complex adaptive systems theory, a multilevel model is developed to account for the logical relation between individual-level actions and interactions in an online community and an organizationa...
