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Although questions about social cohesion lie at the core of our discipline, definitions are often vague and difficult to operationalize. Here, research on social cohesion and social embeddedness is linked by developing a concept of structural cohesion based on network node connectivity. Structural cohesion is defined as the minimum number of actors who, if(More)
Acknowledgements: We want to thank the Santa Fe Institute for providing the venue where these ideas were initially discussed and much of the work was done. We are especially grateful to John Padgett, organizer of the States and Markets group at SFI for his support and insights. We have benefited from comments from the audience at seminars are indebted to(More)
Comments are encouraged. Please do not cite or reference without permission. Abstract This study examines the influence of the structure and composition of a firm's alliance network on its exploratory innovation. In a longitudinal investigation of 77 telecommunications equipment manufacturers, I find the technological diversity of a firm's alliance partners(More)
  • Len Berry, Rajesh Chandy, Jeff Conant, Sanjay Jain, Don Hellriegel, Shelby Hunt +12 others
  • 2009
This article presents a framework for understanding and revitalizing the important role of conceptual articles in the development of knowledge in the marketing discipline. An analysis of 30 years (1978–2007) of publishing data from major marketing journals indicates that conceptual articles are declining, despite repeated calls for more emphasis on this(More)
who provided productive commentary on the applications of connectivity and network methods to large-scale ethnographic projects. Thanks are due to Alexis Ferrand who provided a venue for the first presentation of some of these ideas at the and to Frank Harary who provided dense critiques and suggestions for the formal graph theoretic terminology. Thanks(More)
  • Alec R Levenson, William F Maloney, Ibarra Almada, Julie Anderson Schaffner, Ragui Assaad, Timothy Besley +13 others
  • 1997
(Secretariat of Labor and Social Welfare) for supplying the data. The usual disclaimers apply, with the exception that each of us blames the other for any obvious mistakes, taking full credit for the obscure ones. The high levels of informality and mortality, and apparent stagnation of LDC micro-firms is often thought to result from government induced(More)
Acknowledgements: We are very grateful for the stimulating criticism and support we have received over a number of years about this research from We especially thank Richard Goldthwaite. His detailed and constructive criticisms were an inspiration, because of the erudition and lifetime of archival labor upon which they rested. We also thank the participants(More)
A u g u st 2 0 1 0 For comments and discussions we are grateful to V. Abstract This paper examines the role of cultural factors in driving the politics, size and nature (temporary versus permanent migration) of migration policy. We show that there exists a broad political failure that results in ine¢ ciently high barriers restricting the import of temporary(More)
A variety of devices are used in the intensive care unit for long durations. Each one of them is a double-edged sword: intended to save life, but life-threatening if in the wrong place. Hence, it is important to periodically check that these devices are correctly placed so as to prevent complications. The portable chest radiograph is of tremendous value in(More)