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:|
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- repec:fth:harver:1473 is not listed on IDEAS
- 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. Full references (including those not matched with items on IDEAS)
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