We analyze the spatial diffusion of knowledge in laser technology in West Germany from 1960, when this technology began … of laser knowledge was especially prevalent in large agglomerations. While we cannot detect knowledge spillovers from … research later, indicating the accumulation of knowledge generated in previous periods. Our results highlight the role of a …

Innovation processes are characterized by a pronounced division of labor between actors. Two types of externality may … innovation (MAR externalities). On the other hand, new ideas may be born by the exchange of heterogeneous and complementary … knowledge between actors, which belong to different industries (Jacobs' externalities). We test the impact of both MAR as well …

We analyze the emergence and spatial evolution of the German laser systems industry. Regional knowledge in the related … downstream systems market. Entry into the materials processing submarket appears to be unrelated to academic knowledge in the … region, but the presence of laser source producers and the regional stock of laser knowledge are still highly predictive in …