Issues in measuring the degree of technological specialisation with patent data
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.
|Date of creation:||2005|
|Publication status:||Published by:|
|Contact details of provider:|| Postal: CP114/03, 42 avenue F.D. Roosevelt, 1050 Bruxelles|
Phone: +32 (0)2 650.48.64
Fax: +32 (0)2 650.41.88
Web page: http://difusion.ulb.ac.be
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- 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.
- Zvi Griliches, 1998.
"Patent Statistics as Economic Indicators: A Survey,"
in: R&D and Productivity: The Econometric Evidence, pages 287-343
National Bureau of Economic Research, Inc.
- Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
- Zvi Griliches, 1990. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
- 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 392-398, May/June.
- repec:fth:harver:1473 is not listed on IDEAS
- 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.
- Eleftherios Sapsalis & Bruno van Pottelsberghe de la Potterie, 2007. "The Institutional Sources Of Knowledge And The Value Of Academic Patents," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 16(2), pages 139-157.
- Eleftherios Sapsalis & Bruno Van Pottelsberghe, 2005. "The institutional sources of knowledge and the value of academic patents," Working Papers CEB 04-003.RS, ULB -- Universite Libre de Bruxelles.
- Hélène Dernis & Mosahid Khan, 2004. "Triadic Patent Families Methodology," OECD Science, Technology and Industry Working Papers 2004/2, OECD Publishing.
- 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.
- 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.
- Bruno Van Pottelsberghe & Herman Denis & Dominique Guellec, 2001. "Using patent counts for cross-country comparisons of technology output," ULB Institutional Repository 2013/6227, ULB -- Universite Libre de Bruxelles.
When requesting a correction, please mention this item's handle: RePEc:sol:wpaper:05-016. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Benoit Pauwels)
If references are entirely missing, you can add them using this form.