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Issues in measuring the degree of technological specialisation with patent data

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  • Nicolas van Zeebroeck
  • Bruno Van Pottelsberghe
  • Wook Han

Abstract

This paper analyses several issues that arise when measuring technological specialisation with patent data. Three starting choices are required regarding the data source, the statistical measure and the sectoral aggregation level. We show that the measure is highly sensitive to the data source and to the level of sectoral aggregation. The statistical analysis further suggests that the most stable and reliable measures of technological specialization are obtained with patents applied at the EPO, with Gini or C20 as statistical measure and the 4-digits aggregation level of the IPC classification system.

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Bibliographic Info

Paper provided by ULB -- Universite Libre de Bruxelles in its series ULB Institutional Repository with number 2013/6199.

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Date of creation: 2006
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Publication status: Published in: Scientometrics (2006) v.66 n° 3,p.481-492
Handle: RePEc:ulb:ulbeco:2013/6199

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References

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  1. Bruno Van Pottelsberghe & Eleftherios Sapsalis, 2007. "The institutional sources of knowledge and the value of academic patents," ULB Institutional Repository 2013/6195, ULB -- Universite Libre de Bruxelles.
  2. Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 287-343 National Bureau of Economic Research, Inc.
  3. repec:fth:harver:1473 is not listed on IDEAS
  4. Comanor, William S & Scherer, Frederic M, 1969. "Patent Statistics as a Measure of Technical Change," Journal of Political Economy, University of Chicago Press, vol. 77(3), pages 392-98, May/June.
  5. Basberg, Bjorn L., 1987. "Patents and the measurement of technological change: A survey of the literature," Research Policy, Elsevier, vol. 16(2-4), pages 131-141, August.
  6. Bruno Van Pottelsberghe & H. Denis & Dominique Guellec, 2001. "Using patent counts for cross-country comparisons of technology output," ULB Institutional Repository 2013/6227, ULB -- Universite Libre de Bruxelles.
  7. Sapsalis, Elefthérios & Pottelsberghe de la Potterie, Bruno van, 2003. "The Sources of Knowledge and the Value of Academic Patents," IIR Working Paper 03-24, Institute of Innovation Research, Hitotsubashi University.
  8. Bruno Van Pottelsberghe & Dominique Guellec, 2004. "Measuring the internationalisation of the generation of knowledge: an approach based on patent data," ULB Institutional Repository 2013/6269, ULB -- Universite Libre de Bruxelles.
  9. Hélène Dernis & Mosahid Khan, 2004. "Triadic Patent Families Methodology," OECD Science, Technology and Industry Working Papers 2004/2, OECD Publishing.
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Citations

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Cited by:
  1. Fier, Heide & Pyka, Andreas, 2010. "Against the one-way-street: Analyzing knowledge transfer from industry to science," ZEW Discussion Papers 10-048, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  2. Eugenio Archontopoulos & Dominique Guellec & Niels Stevnsborg & Bruno Van Pottelsberghe & Nicolas van Zeebroeck, 2007. "When small is beautiful: measuring the evolution and consequences of the voluminosity of patent applications at the EPO," ULB Institutional Repository 2013/6191, ULB -- Universite Libre de Bruxelles.
  3. Nicolas van Zeebroeck & Bruno Van Pottelsberghe & Dominique Guellec, 2006. "Claiming more: the increased voluminosity of patent applications and its determinants," Working Papers CEB 06-018.RS, ULB -- Universite Libre de Bruxelles.
  4. Andrea Fernández-Ribas & Philip Shapira, 2009. "Technological diversity, scientific excellence and the location of inventive activities abroad: the case of nanotechnology," The Journal of Technology Transfer, Springer, vol. 34(3), pages 286-303, June.
  5. Mafini Dosso, 2012. "Exploring the causes behind the persistence of French technological specializations," LEM Papers Series 2012/10, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
  6. Nicolas van Zeebroeck, 2009. "Filing strategies and the increasing duration of patent applications," Working Papers CEB 09-005.RS, ULB -- Universite Libre de Bruxelles.
  7. Urraca-Ruiz, Ana, 2013. "The ‘technological’ dimension of structural change under market integration," Structural Change and Economic Dynamics, Elsevier, vol. 27(C), pages 1-18.
  8. Ana Urraca Ruiz & C. Frederico Rocha, 2011. "On the relations between technological opportunity, specialization and growth," Working Papers 13-2011, Universidade de São Paulo, Faculdade de Economia, Administração e Contabilidade de Ribeirão Preto.

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