Abstract

This article analyzes the relevance of a specific form of social networks, so-called innovative milieus, for the development of radical innovations. Two Swiss initiatives which developed highly energy-efficient means of individual transport in the past ten years are analyzed in terms of the resources they could mobilize and the risks they run. To assess the milieu's potential for radical innovation, we examine the construction of a lightweight safety system, the social construction of the product category "lightweight vehicle, " and the management of the interface between prototype development and large-scale manufacturing.