Patent Thickets, Licensing and Innovative Performance


Cockburn, Iain ; MacGarvie, Megan ; Müller, Elisabeth


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URL: http://ub-madoc.bib.uni-mannheim.de/2175
URN: urn:nbn:de:bsz:180-madoc-21750
Document Type: Working paper
Year of publication: 2008
Publication language: English
Institution: Sonstige Einrichtungen > ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung
MADOC publication series: Veröffentlichungen des ZEW (Leibniz-Zentrum für Europäische Wirtschaftsforschung) > ZEW Discussion Papers
Subject: 330 Economics
Classification: JEL: O31 O34 ,
Subject headings (SWD): Deutschland , Patent , Innovationswettbewerb , Lizenzvergabe , Immaterialgüterrecht , Innovation
Keywords (English): patent thickets , licensing , innovative performance
Abstract: We examine the relationship between fragmented intellectual property (IP) rights and innovative performance, taking into consideration the role played by in-licensing of IP. Controlling for a variety of firm and market characteristics, we find that firms facing more fragmented IP landscapes are more likely to report expenditures on in-licensing and for those firms that do incur license costs we find a weak positive association between licensing expenditure and fragmented IP rights in the relevant technology. We also observe a negative relationship between IP fragmentation and innovative performance, but only for firms that engage in in-licensing and only for product innovation. The relationship between fragmentation and innovative performance also depends on the size of a firm’s patent portfolio, which suggests an important strategic role for defensive patenting in the context of fragmented property rights.
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Das Dokument wird vom Publikationsserver der Universitätsbibliothek Mannheim bereitgestellt.




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Cockburn, Iain ; MacGarvie, Megan ; Müller, Elisabeth (2008) Patent Thickets, Licensing and Innovative Performance. Open Access [Working paper]
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