***** To join INSNA, visit http://www.insna.org ***** Hi Cami, I have an empirical piece where we demonstrate an inverted U effect of density on performance: Oh, H., Chung, M-H., & Labianca, G. (2004) “Group Social Capital and Group Effectiveness: The Role of Informal Socializing Ties.” Academy of Management Journal, 47: 860-875. and a theoretical piece: Oh, H., Labianca, G., & Chung, M-H. (forthcoming). “A Multilevel Model of Group Social Capital.” Academy of Management Review. (Available on my website -- see signature below for URL). I would also refer you to Ray Reagans' work in this area: Reagans R., & Zuckerman, E. W. 2001. Networks, diversity, and productivity: The social capital of corporate R&D teams. Organization Science, 12: 502-517. Reagans, R., & McEvily, B. 2003. Network structure and knowledge transfer: The effects of cohesion and range. Administrative Science Quarterly, 48: 240-267. Good luck with your project, Joe Cami Ryan <[log in to unmask]> on Thursday, July 07, 2005 at 11:02 AM -0500 wrote: >***** To join INSNA, visit http://www.insna.org ***** > >Dear Soc-Net Colleagues: > >Can anyone point to specific theories or studies wherein increased >density is assumed to lead to increased output or improved performance? >I assume that if one is studying communication networks that this >assumption might hold. In other cases, maybe not (I am thinking of the >value of 'weak ties' and 'structural holes'). > >Alternatively, has there been work done (comparatively speaking) to >uncover 'optimal' densities as it relates to networks? > >Any help that you can offer in this would be great! > >Regards, >Cami Ryan > >_____________________________________________________________________ >SOCNET is a service of INSNA, the professional association for social >network researchers (http://www.insna.org). To unsubscribe, send >an email message to [log in to unmask] containing the line >UNSUBSCRIBE SOCNET in the body of the message. > Giuseppe (Joe) Labianca Assistant Professor of Organization and Management Goizueta Business School Emory University 1300 Clifton Road Atlanta, GA 30322 Office Phone: (404) 727-7067 Mobile Phone: (404) 428-4878 Fax: (404) 727-6663 [log in to unmask] http://www.goizueta.emory.edu/faculty/GiuseppeLabianca/index.html _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.