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Actor Fluidity and Knowledge Persistence in Regional Inventor Networks

Author

Listed:
  • Michael Fritsch

    (Department of Economics, Friedrich Schiller University Jena, Carl-Zeiss-Str. 3, 07743 Jena, Germany)

  • Moritz Zoellner

    (Department of Economics, Friedrich Schiller University Jena, Carl-Zeiss-Str. 3, 07743 Jena, Germany)

Abstract
The development of inventor networks is characterized by the addition of a significant number of new inventors, while a considerable number of incumbent inventors discontinue. We estimated the persistence of knowledge in the inventor networks of nine German regions using alternative assumptions about knowledge transfer. Based on these estimates, we analyzed how the size and 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 that the knowledge of new inventors is much more important for RIS performance than old knowledge that persists.

Suggested Citation

  • Michael Fritsch & Moritz Zoellner, 2022. "Actor Fluidity and Knowledge Persistence in Regional Inventor Networks," Economies, MDPI, vol. 10(12), pages 1-20, November.
    • Handle: RePEc:gam:jecomi:v:10:y:2022:i:12:p:298-:d:985272
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    References listed on IDEAS

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    1. Fritsch, Michael & Titze, Mirko & Piontek, Matthias, 2020. "Identifying cooperation for innovation―a comparison of data sources," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 27(6), pages 630-659.
    2. Michael Fritsch & Moritz Zoellner, 2020. "The fluidity of inventor networks," The Journal of Technology Transfer, Springer, vol. 45(4), pages 1063-1087, August.
    3. Bahar, Dany & Choudhury, Prithwiraj & Rapoport, Hillel, 2020. "Migrant inventors and the technological advantage of nations," Research Policy, Elsevier, vol. 49(9).
    4. Michael Fritsch & Martina Kauffeld-Monz, 2010. "The impact of network structure on knowledge transfer: an application of social network analysis in the context of regional innovation networks," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 44(1), pages 21-38, February.
    5. Ejermo, Olof & Karlsson, Charlie, 2006. "Interregional inventor networks as studied by patent coinventorships," Research Policy, Elsevier, vol. 35(3), pages 412-430, April.
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    8. Cristiano Antonelli (ed.), 2011. "Handbook on the Economic Complexity of Technological Change," Books, Edward Elgar Publishing, number 13391.
    9. Cohen, Wesley M & Klepper, Steven, 1996. "Firm Size and the Nature of Innovation within Industries: The Case of Process and Product R&D," The Review of Economics and Statistics, MIT Press, vol. 78(2), pages 232-243, May.
    10. Sidonia von Proff & Guido Buenstorf & Martin Hummel, 2012. "University Patenting in Germany before and after 2002: What Role Did the Professors' Privilege Play?," Industry and Innovation, Taylor & Francis Journals, vol. 19(1), pages 23-44, January.
    11. Michael Fritsch & Mirko Titze & Matthias Piontek, 2018. "Knowledge Interactions in Regional Innovation Networks: Comparing Data Sources," Jena Economics Research Papers 2018-003, Friedrich-Schiller-University Jena.
    12. Michael Fritsch, 2002. "Measuring the Quality of Regional Innovation Systems: A Knowledge Production Function Approach," International Regional Science Review, , vol. 25(1), pages 86-101, January.
    13. Michael Fritsch & Holger Graf, 2011. "How sub‐national conditions affect regional innovation systems: The case of the two Germanys," Papers in Regional Science, Wiley Blackwell, vol. 90(2), pages 331-353, June.
    14. Balconi, Margherita & Breschi, Stefano & Lissoni, Francesco, 2004. "Networks of inventors and the role of academia: an exploration of Italian patent data," Research Policy, Elsevier, vol. 33(1), pages 127-145, January.
    15. Bercovitz, Janet & Feldman, Maryann, 2011. "The mechanisms of collaboration in inventive teams: Composition, social networks, and geography," Research Policy, Elsevier, vol. 40(1), pages 81-93, February.
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    Cited by:

    1. Michael Fritsch & Muhamed Kudic, 2022. "Micro dynamics and macro stability in inventor networks," The Journal of Technology Transfer, Springer, vol. 47(2), pages 353-382, April.

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    More about this item

    Keywords

    innovation networks; knowledge; R&D cooperation; patents; persistence;
    All these keywords.

    JEL classification:

    • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights
    • R1 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics
    • D2 - Microeconomics - - Production and Organizations
    • D8 - Microeconomics - - Information, Knowledge, and Uncertainty

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