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Innovation network functionality : the identification and categorization of multiple innovation networks
Regional developers and network administrators are proud of having the largest number of registered network participants and clicks on their internet platform. However, what ultimately counts are the real business contacts that lead to additional sales, sustainable supplier-relationships, or to innovation projects leading to sustainable competitive advantages for companies and regions. Thomas Bentivegna focuses on ad-hoc networks, which are poorly represented in existing network and innovation literature.
Book
The Wealth of Networks
With the radical changes in information production that the Internet has introduced, we stand at an important moment of transition, says Yochai Benkler in this thought-provoking book. The phenomenon he describes as social production is reshaping markets, while at the same time offering new opportunities to enhance individual freedom, cultural diversity, political discourse, and justice. But these results are by no means inevitable: a systematic campaign to protect the entrenched industrial information economy of the last century threatens the promise of today's emerging networked information environment.
In this comprehensive social theory of the Internet and the networked information economy, Benkler describes how patterns of information, knowledge, and cultural production are changing-and shows that the way information and knowledge are made available can either limit or enlarge the ways people can create and express themselves. He describes the range of legal and policy choices that confront us and maintains that there is much to be gained-or lost-by the decisions we make today.
eBook
The Econometrics of Networks
Showcasing fresh methodological and empirical research on the econometrics of networks, and comprising both theoretical, empirical and policy papers, the authors in this volume bring together a wide range of perspectives to facilitate a dialogue between academics and practitioners for better understanding this groundbreaking field.
eBook
Social networking : big business on your computer
The book examines how social networking sites, such as Facebook, Twitter, and Google+, have become such a powerful presence and the impact they have had on our culture. Readers also learn why online privacy has become one of the most controversial issues.
Book
Connections
Networks pervade social and economic life, and they play a prominent role in explaining a huge variety of social and economic phenomena. Standard economic theory did not give much credit to the role of networks until the early 1990s, but since then the study of the theory of networks has blossomed. At the heart of this research is the idea that the pattern of connections between individual rational agents shapes their actions and determines their rewards. The importance of connections has in turn motivated the study of the very processes by which networks are formed.
eBook
A community-based exercise and education scheme for stroke survivors: a randomized controlled trial and economic evaluation
Objective: The evaluation of a community-based exercise and education scheme for stroke survivors.
Design: A single blind parallel group randomized controlled trial.
Setting: Leisure and community centres in the south-west of England.
Subjects: Stroke survivors (median (IQR) time post stroke 10.3 (5.4—17.1) months). 243 participants were randomized to standard care (124) or the intervention (119).
Intervention: Exercise and education schemes held twice weekly for eight weeks, facilitated by volunteers and qualified exercise instructors (supported by a physiotherapist), each with nine participants plus carers or family members.
Method: Participants were assessed by a blinded independent assessor at two weeks before the start of the scheme, nine weeks and six months. One-year follow-up was by postal assessment.
Main measures: Primary outcomes: Subjective Index of Physical and Social Outcome (SIPSO); Frenchay Activities Index; Rivermead Mobility Index. NHS, social care and personal costs. Secondary outcomes included WHOQoL-Bref.
Analysis: Intention-to-treat basis, using non-parametric analysis to investigate change from baseline. Economic costs were compared in a cost-consequences analysis.
Results: There were significant between-group changes in SIPSO physical at nine weeks (median (95% confidence interval (CI)), 1 (0, 2): P = 0.022) and at one year (0 (—1, 2): P = 0.024). (WHOQol-Bref psychological (6.2 (—0.1, 9.1): P = 0.011) at six months. Mean cost per patient was higher in the intervention group. The difference, excluding inpatient care, was £296 (95% CI: —£321 to £913).
Conclusion: The community scheme for stroke survivors was a low-cost intervention successful in improving physical integration, maintained at one year, when compared with standard care.
Journal Article
Financial Networks and Contagion
We study cascades of failures in a network of interdependent financial organizations: how discontinuous changes in asset values (e.g., defaults and shutdowns) trigger further failures, and how this depends on network structure. Integration (greater dependence on counterparties) and diversification (more counterparties per organization) have different, nonmonotonic effects on the extent of cascades. Diversification connects the network initially, permitting cascades to travel; but as it increases further, organizations are better insured against one another's failures. Integration also faces trade-offs: increased dependence on other organizations versus less sensitivity to own investments. Finally, we illustrate the model with data on European debt cross-holdings.
Journal Article