Papers in Evolutionary Economic Geography

June 1, 2017

# 17.11 Critical links in knowledge networks – What about proximities and gatekeeper organizations?

Filed under: 2017 — Tags: , , , , — mattehartog @ 5:08 pm

Tom Broekel and Wladimir Mueller


The paper analyzes links in knowledge networks that are essential for the integration and knowledge diffusion properties of the entire network. By focusing on critical links, as defined in network science, we evaluate these links’ properties from the perspective of the proximity and regional gatekeeper literature. We thereby gain insights into likely conditions of their emergence and functions. Moreover, we extend the dyadic perspective on regional gatekeeper organizations and link it more strongly to the network science and proximity framework literature. An empirical study applies these arguments and investigates the proximity characteristics of critical links in 132 technology-specific subsidized knowledge networks in Germany. The results show that critical links tend be formed between regional gatekeepers that offer related knowledge resources. The links bridge institutional distances by utilizing the benefits of geographic and social proximity.

September 2, 2012

# 12.17 The co-evolution of proximities – a network level study

Filed under: 2012 — Tags: , , , , — mattehartog @ 6:22 pm

Tom Broekel


Despite the growing number of studies, still little is known about how network structures and proximity relations between linked actors evolve over time. Arguments are put forward for the existence of co-evolution dynamics between different types of proximity configurations within networks. An empirical investigation tests these arguments using information on the development of 280 networks. Amongst others, it is shown that institutional and cognitive proximity configurations coevolve in the short as well as in the long-run. While institutional and social proximity configurations are only related in the long run. Moreover, temporal auto-correlation dynamics characterizes the development of cognitive proximity configurations.

December 11, 2010

# 10.17 Do Cooperative R&D Subsidies Stimulate Regional Innovation Efficiency? Evidence from Germany

Filed under: 2010 — Tags: , , , — Noegg Blogger @ 2:25 pm

Tom Broekel


The paper investigates the impact of R&D subsidies on regional innova- tion efficiency. Building on a rich panel data set covering 270 German labor market regions and four industries, it is particularly shown that subsidies for R&D cooperation are a suitable policy measure for stimulating the in- novation efficiency of regions. The empirical findings moreover suggest that regions with low innovation capacities benefit from subsidized inter-regional cooperation involving partners with diverse industrial and sectoral back- grounds. Establishing inter-regional cooperation that give access to related knowledge and skills is more important for regions with large innovation capacities.


August 17, 2010

#10.09 What drives patent performance of German biotech firms? The impact of R&D subsidies, knowledge networks and their location

Filed under: 2010 — Tags: , , , , — Noegg Blogger @ 3:07 pm

Dirk Fornahl and Tom Broekel and Ron Boschma


This paper aims to explain whether firm-specific features, their engagement in collaboration networks and their location influence patent activity of biotech firms in Germany in the period 1997-2004. First, we demonstrate that non-collaborative R&D subsidies do not increase patent intensity of biotech firms. Second, the number of knowledge links biotech firms is also not influencing their patent performance. However, strong and robust evidence is found that some but not too much cognitive distance between actors involved in R&D collaborations increases patent performance of firms. Third, being located in a biotech cluster does positively impact on patent performance.

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