The paper identifies 5 stylized facts to characterize the geographic distribution of innovative activities in France (mainly its high concentration in the region Ile-de-France). It proposes an original model of regional growth in a knowledge-based economy considering the density of RD activities...

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....