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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：Mangalaraj, George; Nerur, Sridhar; Mahapatra, RadhaKanta; Price, Kenneth H.
作者单位：Western Illinois University; University of Texas System; University of Texas Arlington
摘要：Software design is a knowledge intensive task that constitutes a critical part of the software development process. Using a controlled experiment involving software practitioners, this research examines two potentially useful mechanisms for improving the software design process. Specifically, this study examines the impact of structural distribution of cognition through design patterns and social distribution of cognition through collaborating pairs on design outcomes. The results indicate tha...
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作者：Howison, James; Crowston, Kevin
作者单位：University of Texas System; University of Texas Austin; Syracuse University; National Science Foundation (NSF)
摘要：This paper develops and illustrates the theory of collaboration through open superposition: the process of depositing motivationally independent layers of work on top of each other over time. The theory is developed in a study of community-based free and open source software (FLOSS) development, through a research arc of discovery (participant observation), replication (two archival case studies), and theorization. The theory explains two key findings: (1) the overwhelming majority of work is ...
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作者：Bartelt, Valerie L.; Dennis, Alan R.
作者单位：Texas A&M University System; Texas A&M University Kingsville; Indiana University System; Indiana University Bloomington
摘要：Much prior research on virtual teams has examined the impact of the features and capabilities of different communication tools (the nature of communication) on team performance. In this paper, we examine how the social structures (i.e., genre rules) that emerge around different communication tools (the nurture of communication) can be as important in influencing performance. During habitual use situations, team members enact genre rules associated with communication tools without conscious tho...
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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：Hess, Traci J.; McNab, Anna L.; Basoglu, K. Asli
作者单位：University of Massachusetts System; University of Massachusetts Amherst; University of Delaware
摘要：A reliability generalization study (a meta-analysis of reliability coefficients) was conducted on three widely studied information systems constructs from the technology acceptance model (TAM): perceived ease of use, perceived usefulness, and behavioral intentions. This form of meta-analysis summarizes the reliability coefficients of the scores on a specified scale across studies and identifies the study characteristics that influence the reliability of these scores. Reliability is a critical ...
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作者：Yin, Dezhi; Bond, Samuel D.; Zhang, Han
作者单位：University of Missouri System; University of Missouri Columbia; University System of Georgia; Georgia Institute of Technology
摘要：This paper explores the effects of emotions embedded in a seller review on its perceived helpfulness to readers. Drawing on frameworks in literature on emotion and cognitive processing, we propose that over and above a well-known negativity bias, the impact of discrete emotions in a review will vary, and that one source of this variance is reader perceptions of reviewers' cognitive effort. We focus on the roles of two distinct, negative emotions common to seller reviews: anxiety and anger. In ...
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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...
