***** To join INSNA, visit http://www.insna.org ***** Hi, To add to Ezra Zuckerman's information, I conducted a study on small firms egocentric networks in the building industry in France for my PhD « Networks and business : Performance and social capital of small firms in the building industry ». A sample of 150 business owners were interviewed. I think this choice of field, the same as that of E. Zuckerman (construction / home remodeling), is not a coincidence: small business networks - either formal or informal - are widespread in this industry. Remember Eccles seminal article on Quasifirms. Two issues are dealt with in my study: the contingent value of social capital of entrepreneurs in the building industry and their access to business. Thanks to a structural approach combined with strategic analysis and a sociotechnical perspective, it provides a better understanding of the mechanisms of social capital, social structures of markets and collective action of interdependant entrepreneurs. My main result is that the value of social capital (in particular structural holes vs network closure) depends on the position in the construction process and on the variability of the activity. Interfirm relationships appear to play a big role in the regulation of such production markets as well as in performance: 40% of a building industry entrepreneur's most important business relations are to other small firms. I differenciate between two performance measurements : profitability and productivity. Relations between small firms have a straightforward impact upon productivity. But more interestingly : this impact varies according to the nature of firm activity. For instance, specialized firms benefit most from relations with their peers, whereas such relations are detrimental to those positionned upstream. Cheers, Catherine Comet Clersé - CNRS Institute of Sociology USTL 59655 Villeneuve d'Ascq cedex France ----- Original Message ----- From: "Ezra Zuckerman" <[log in to unmask]> To: <[log in to unmask]> Sent: Thursday, February 17, 2005 7:58 PM Subject: Re: Networks of Small Businesses > ***** To join INSNA, visit http://www.insna.org ***** > > Celina: > > You might find my work with Stoyan Sgourev > (http://web.mit.edu/ewzucker/www/Peer%20Capitalism.pdf) on industry peer > networks (and parallel relationships more generally) to be relevant. Among > other things, it includes the only survey data of which I am aware that > describes the membership of firm egocentric network in an industry. And > these are all small firms, as are (typically) members of industry peer > networks more generally. > > Cheers, > > Ezra W. Zuckerman > MIT Sloan School of Management > 50 Memorial Drive, E52-564 > Cambridge MA 02142 > [log in to unmask] > Tel: 617-253-1918 > Fax: 617-253-2660 > http://web.mit.edu/ewzucker/www/ > > > *-----Original Message----- > *From: Social Networks Discussion Forum [mailto:[log in to unmask]] On > *Behalf Of celinabasto > *Sent: Monday, February 14, 2005 10:01 AM > *To: [log in to unmask] > *Subject: Networks of Small Businesses > * > ****** To join INSNA, visit http://www.insna.org ***** > * > *Hi Steve! Hi Everybody! > * > *Is anyone working with small businesses networks? > * > *Brazilian government has defined clusters of small businesses as a strategy > *of development. As far as I have observed lots of efforts are concentrated > *in local infrastructure (Marshallian Industrial Districts) and very little > *is done about networks. > * > *Informations on the subject will be welcomed. > * > *"Abraços" from Brazil, > * > *Celina > * _____________________________________________________________________ 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.