This paper investigates the impact of scientific relatedness on knowledge dynamics in biotech at the city level during the period 1989–2008. We assess the extent to which the emergence of new research topics and the disappearance of existing topics in cities are dependent on their degree of...

User-producer interactions are often assumed to be an important source of innovation. Spatial proximity between organisations would contribute to such interactive learning processes, because it facilitates face-to-face interactions required to exchange knowledge. However, both assumptions are...