This study aims to provide a better understanding of the effect of social networks on innovation through the analysis of territorial agglomerations of firms. Critical voices argue that the same mechanisms that form the basis of efficient, continuous improvements of clustered firms can also be considered as limitations. We suggest that the impact of social capital decreases beyond a certain point of development. In fact, the effect of social interactions and trust on firm value creation can be described as an inverted U-shaped curve. The study is based on a sample of 154 firms in the Valencia region of Spain. Implications of the study have relevant prescriptions for regional planners and individual entrepreneurs.

Registro de acceso restringido Este recurso no está disponible en acceso abierto por política de la editorial. No obstante, se puede acceder al texto completo desde la Universitat Jaume I o si el usuario cuenta con suscripción. Registre d'accés restringit Aquest recurs no està disponible en accés obert per política de l'editorial. No obstant això, es pot accedir al text complet des de la Universitat Jaume I o si l'usuari compta amb subscripció. Restricted access item This item isn't open access because of publisher's policy. The full--text version is only available from Jaume I University or if the user has a running suscription to the publisher's contents.

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Firms aspire to take advantage of technical and business networks through interorganizational interactions in order to improve performance. Consequently, researchers are increasingly attracted by the dynamics and implications of network formation at both local and global levels.From another perspective, authors have abandoned a monotonic effect and simplistic approach to proximity, as it emerges as a complex and multidimensional notion.Using data from a foodstuffs cluster located in the Valencia region (Spain) and advanced econometric methods, this paper aims to shed light on the detrimental effects and complementarities that may arise among the proximity dimensions. After controlling for network endogenous forces and firm characteristics, our findings reveal the effect of proximity dimensions on the creation of linkages in advanced stages of the cluster life cycle, in addition to the interactions among them.

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Using the Social Capital theoretical framework, territorial agglomerations of firms, such as in the industrial district, can be identified as dense strong-tie networks and are thus suitable for exploiting activities. This paper addresses the possible exploring limitations of these clustered firms. Following alternative explanations, such as the structural holes and weak tie approaches, it is proposed that local institutions may play a role as intermediary agents between external disperse networks and internal dense networks, therefore enabling these firms to deal with the requirements of an ever-changing environment. The paper also develops an empirical section where the Spanish ceramic tile industrial district is described in order to illustrate theoretical arguments. Findings suggested a number of ways in which local institutions may facilitate the creation of value for firms. Particularly, local institutions interact with many external firms and institutions and undertake research projects with local firms. In addition, some quantification of the participation of firms in the activities carried out by institutions is offered, suggesting explanations for the barriers that prevent firms from gaining direct access to external networks. Copyright 2005 Blackwell Publishing Ltd..

Registro de acceso restringido Este recurso no está disponible en acceso abierto por política de la editorial. No obstante, se puede acceder al texto completo desde la Universitat Jaume I o si el usuario cuenta con suscripción. Registre d'accés restringit Aquest recurs no està disponible en accés obert per política de l'editorial. No obstant això, es pot accedir al text complet des de la Universitat Jaume I o si l'usuari compta amb subscripció. Restricted access item This item isn't open access because of publisher's policy. The full--text version is only available from Jaume I University or if the user has a running suscription to the publisher's contents.