Randomized experiments provide policy relevant treatment effects if there are no spillovers between participants and nonparticipants. We show that this assumption is violated for a Danish activation program for unemployed workers. Using a difference-in-difference model we show that the...

<!--Début du contenu @xml:lang="en"--> ?The French « Pôles de compétitivité » policy notably entails the financing of collaborative projects. This gives rise to a particular approach to open innovation that mainly relies on the co-constructing and the sharing of a resource common to stakeholders. This may entail a questioning...

This article enlightens the role of communities of practice in the dynamics of territorial governance. It proposes a renewed understanding in terms of embeddeness ? decoupling processes. Our analysis of micro-social relations in the angevine ornamental horticulture cluster underlines that...

The ‘knowledge economy’ is a concept commonly deemed too ambiguous and elusive to hold any significance in current economic debate. This valuable book seeks to refute that myth. Presenting an important collection of views, from a number of leading scholars, this innovative volume...

While the issue of cluster dynamics has been poorly addressed in the literature, they actually display different levels of adaptability to change and different levels of collaboration. This contribution aims to address this theoretical issue through recourse to the literature on proximity. We...

[eng] The aim of this contribution is to exhibit some of the mechanisms underlying the internal coordination of knowledge intensive communities. By basing our discussion on the example of open source software development, it will be shown that two complementary mechanisms are at work : social...