using alternative assumptions about knowledge transfer. Based on these estimates we analyze how the size and structure of a … network may influence knowledge persistence over time. In a final step, we assess how persistent knowledge as well as the … knowledge of new inventors effect the performance of regional innovation systems (RIS). The results suggest that the knowledge …

structure of a network may influence knowledge persistence over time. In a final step, we assessed how persistent knowledge as … well as the knowledge of new inventors affect the performance of regional innovation systems (RIS). The results suggest … considerable number of incumbent inventors discontinue. We estimated the persistence of knowledge in the inventor networks of nine …

observed from 1985 to 2013, in 13 German regions. We find that the initiative increases network size and innovation activities … knowledge interactions are perceived to be underdeveloped. In contrast to the popularity of the policy measure little is known … about its impact on knowledge networks, because most scientific evaluations focus on impacts at the firm level. Using the …