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Evolution of the Knowledge Base in Knowledge Intensive Sectors

The paper develops an evolutionary framework to investigate and compare the dynamics of knowledge base across three knowledge intensive sectors, i.e. biotechnology, telecommunications and electronics. Knowledge is understood as collective good featured by a co-relational and a retrieval-interpretative structure. The internal structure of knowledge is described as a network the nodes of which are small units within traces of knowledge like patent documents, connected by links determined by their joint utilisation. We thus derived a number of properties like variety, coherence and cognitive distance, by using co-occurrence matrixes referring to the citation of technological classes within patent documents. Empirical results show the existence of interesting and meaningful differences across the sectors, which are linked to the different phases of lifecycles the industries have undergone in the period of observation.

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File URL: http://www.unito.it/unitoWAR/ShowBinary/FSRepo/D031/Allegati/WP2009Dip_L&B/6_WP_Momigliano.pdf
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Paper provided by University of Turin in its series Department of Economics and Statistics Cognetti de Martiis LEI & BRICK - Laboratory of Economics of Innovation "Franco Momigliano", Bureau of Research in Innovation, Complexity and Knowledge, Collegio Carlo Alberto. WP series with number 200906.

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Length: 38 pages
Date of creation: May 2009
Date of revision:
Handle: RePEc:uto:labeco:200906
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  1. Agarwal, Rajshree & Gort, Michael, 2001. "First-Mover Advantage and the Speed of Competitive Entry, 1887-1986," Journal of Law and Economics, University of Chicago Press, vol. 44(1), pages 161-77, April.
  2. Breschi, Stefano & Lissoni, Francesco & Malerba, Franco, 2003. "Knowledge-relatedness in firm technological diversification," Research Policy, Elsevier, vol. 32(1), pages 69-87, January.
  3. Antonelli, Cristiano, 2003. "Localized Technological Change," Department of Economics and Statistics Cognetti de Martiis LEI & BRICK - Laboratory of Economics of Innovation "Franco Momigliano", Bureau of Research in Innovation, Complexity and Knowledge, Collegio 200305, University of Turin.
  4. Jaffe, Adam B, 1989. "Real Effects of Academic Research," American Economic Review, American Economic Association, vol. 79(5), pages 957-70, December.
  5. Klepper, Steven, 1997. "Industry Life Cycles," Industrial and Corporate Change, Oxford University Press, vol. 6(1), pages 145-81.
  6. repec:fth:harver:1473 is not listed on IDEAS
  7. Evens Salies & Jackie Krafft, 2006. "The cost of switching Internet providers in the French broadband industry, or why ADSL has diffused faster than other innovative technologies," Sciences Po publications n°2006-16, Sciences Po.
  8. Zvi Griliches, 1990. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
  9. repec:dgr:tuecis:0215 is not listed on IDEAS
  10. Nesta, Lionel, 2008. "Knowledge and productivity in the world's largest manufacturing corporations," Journal of Economic Behavior & Organization, Elsevier, vol. 67(3-4), pages 886-902, September.
  11. Corrocher, Nicoletta & Malerba, Franco & Montobbio, Fabio, 2007. "Schumpeterian patterns of innovative activity in the ICT field," Research Policy, Elsevier, vol. 36(3), pages 418-432, April.
  12. Lionel Nesta & Pier Paolo Saviotti, 2005. "COHERENCE OF THE KNOWLEDGE BASE AND THE FIRM'S INNOVATIVE PERFORMANCE: EVIDENCE FROM THE U.S. PHARMACEUTICAL INDUSTRY -super-* ," Journal of Industrial Economics, Wiley Blackwell, vol. 53(1), pages 123-142, 03.
  13. Thomas Grebel & Jackie Krafft & Pier-Paolo Saviotti, 2006. "On the Life Cycle of Knowledge Intensive Sectors," Revue de l'OFCE, Presses de Sciences-Po, vol. 97(5), pages 63-85.
  14. Koen Frenken & Frank Van Oort & Thijs Verburg, 2007. "Related Variety, Unrelated Variety and Regional Economic Growth," Regional Studies, Taylor & Francis Journals, vol. 41(5), pages 685-697.
  15. Jackie Krafft, 1999. "Introduction," Post-Print hal-00212290, HAL.
  16. Saviotti, Pier Paolo, 2007. "On the dynamics of generation and utilisation of knowledge: The local character of knowledge," Structural Change and Economic Dynamics, Elsevier, vol. 18(4), pages 387-408, December.
  17. Pier Saviotti & Koen Frenken, 2008. "Export variety and the economic performance of countries," Journal of Evolutionary Economics, Springer, vol. 18(2), pages 201-218, April.
  18. Jackie Krafft, 1999. "Introduction," Post-Print hal-00212290, HAL.
  19. Martin Fransman & Jackie Krafft, 2002. "Telecommunications," Post-Print hal-00212269, HAL.
  20. Jackie Krafft & Evens Salies, 2008. "The cost of switching Internet providers in the broadband industry, or why ADSL has diffused faster than other innovative technologies: Evidence from the French case," Post-Print hal-00203512, HAL.
  21. Chris Freeman & Luc Soete, 1997. "The Economics of Industrial Innovation, 3rd Edition," MIT Press Books, The MIT Press, edition 3, volume 1, number 0262061953, June.
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