Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/174370
Authors: 
Fritsch, Michael
Zöllner, Moritz
Year of Publication: 
2017
Series/Report no.: 
Jena Economic Research Papers 2017-009
Abstract: 
We investigate the stability of cooperative relationships between inventors and consequences for the characteristics and patent productivity of the respective regional innovation systems (RIS). The empirical analysis is for nine German regions over a period of 15 years. We find a rather high level of "fluidity", i.e., entry and exit of actors, as well as instability of their relationships over time. The aggregate characteristics of the regional networks are, however, quite robust even with high levels of micro-level fluidity. There are both significantly positive and negative relationships between micro-level fluidity and the performance of the respective RIS.
Subjects: 
division of innovative labor
Innovation networks
patents
R&D cooperation
JEL: 
O3
R1
D2
D8
Document Type: 
Working Paper

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