knowledge of new inventors effect the performance of regional innovation systems (RIS). The results suggest that the knowledge … considerable number of incumbent inventors discontinue. We estimate the persistence of knowledge in regional inventor networks … using alternative assumptions about knowledge transfer. Based on these estimates we analyze how the size and structure of a …

assessing how the structure of actor-based knowledge networks is affected by such policies. We continue in that direction and … analyze how technology-based regional knowledge spaces structurally respond to the introduction of a cluster policy. Taking … the example of the German BioRegio contest, we examine how such knowledge spaces in winning and non-winning regions …

The emergence and evolution of a technology is intimately related to it's knowledge base. A knowledge base shows … certain dynamics and evolves over time. Knowledge accumulation, especially the in-flow of knowledge from sources external to … an industry, is crucial for the technology's knowledge base evolution in terms of initiating, redirecting and refreshing …

-based knowledge spillovers as one such factor (Audretsch and Lehmann 2005, Cassia et al. 2009). This paper extends this approach to … the regional innovator network, promoting region-specific knowledge spillovers. Two data bases are applied. First, patent …