Breadth and Depth of Main Technology Fields: An empirical investigation using patent data
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KeywordsPatents; Breadth and depth; technology fields; knowledge base.;
NEP fieldsThis paper has been announced in the following NEP Reports:
- NEP-ALL-2007-06-18 (All new papers)
- NEP-INO-2007-06-18 (Innovation)
- NEP-IPR-2007-06-18 (Intellectual Property Rights)
- NEP-KNM-2007-06-18 (Knowledge Management & Knowledge Economy)
- NEP-MKT-2007-06-18 (Marketing)
- NEP-TID-2007-06-18 (Technology & Industrial Dynamics)
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