Abstract
Increasing pressure on innovativeness and collaboration is supposed to strengthen the importance of geographical proximity in innovation systems. But simultaneously there are 'globalization forces' and information and communication technology (ICT) developments that stress wider contexts and different dependencies to place and distance. With case studies of innovative firms at IDEON Science Park in Lund, the article presents analyses of the importance of proximity, related to the kind of knowledge and collaborative arrangements involved in innovation processes. Scope for 'untraded interdependencies' is discussed as well as the possible ICT impact of these collaborative relations. Argument for a three tier innovation system is put forward and its implications for regional innovation strategies are, concludingly, discussed.