Issues in measuring the degree of technological specialisation with patent data

Nicolas van Zeebroeck; Bruno van Pottelsberghe de la Potterie; Wook Han

doi:10.1007/s11192-006-0035-y

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Scientometrics

Volume/Issue:: Volume 66: Issue 3

Issues in measuring the degree of technological specialisation with patent data

Authors:

Nicolas van Zeebroeck

Nicolas van Zeebroeck ULB - Solvay Business School, Centre Emile Bernheim (CEB) Av. Roosevelt 21, 1050 Brussels, Belgium Av. Roosevelt 21, 1050 Brussels, Belgium

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Bruno van Pottelsberghe de la Potterie

Bruno van Pottelsberghe de la Potterie Brussels University (ULB), Solvay Business School, CEB, DULBEA and CEPR Brussels (Belgium) Brussels (Belgium)

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Wook Han

Wook Han ULB - Solvay Business School Brussels (Belgium) Brussels (Belgium)

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Pages:: 481–492

Online Publication Date:: 01 Feb 2006

Publication Date:: 13 Feb 2006

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s11192-006-0035-y

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Summary

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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Scientometrics

Print ISSN:: 0138-9130

Online ISSN:: 1588-2861

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Scientometrics
Language	English
Size	B5
Year of Foundation	1978
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
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ISSN	0138-9130 (Print)
ISSN	1588-2861 (Online)