Le document examine si l’activité de brevetage des entreprises les plus inventives affecte le nombre de brevets délivrés à d\'autres inventeurs locaux dans la même zone métropolitaine aux États-Unis. La théorie économique prédit que les effets positifs des économies...

In this paper we review 20 years of quantitative research in the geography of innovation, to whose advancement patent data have contributed in a decisive way. We know now that the importance attributed by the earliest studies to knowledge externalities as an agglomeration force was excessive....

The purpose of this chapter is to highlight how evolutionary theory can provide an adequate framework for sectoral studies. It sets out the broad outlines of such an approach focusing on key concepts, while suggesting lines of interpretation of industrial dynamics. The concrete illustrations...