This paper documents the relationship between appropriation instruments and the innovation activity in Tunisia. It focuses on the factors that determine the appropriation of innovation activities like the value of sales of the firms, networking, science–industry linkage, competitive pressure...

In spite of the considerable effort of the work focused on the identification of the conditions and factors favourable to innovation in developing countries, very few contributions concern the analysis of the obstacles impeding or slowing the innovation process and factors affecting their...

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....

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...

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...