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How to measure patent thickets – a novel approach
von Graevenitz, Georg; Wagner, Stefan; Harhoff, Dietmar - 2009
The existing literature identifies patent thickets indirectly. In this paper we propose a novel measure based on patent citations which allows us to measure the density of patent thickets directly. We discuss the algorithm which generates the measure and present descriptive results validating...
Persistent link: https://www.econbiz.de/10010427770
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How to measure patent thickets – a novel approach
Graevenitz, Georg von; Wagner, Stefan; Harhoff, Dietmar - Volkswirtschaftliche Fakultät, … - 2009
The existing literature identifies patent thickets indirectly. In this paper we propose a novel measure based on patent citations which allows us to measure the density of patent thickets directly. We discuss the algorithm which generates the measure and present descriptive results validating...
Persistent link: https://www.econbiz.de/10004967070
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How to measure patent thickets : a novel approach
Graevenitz, Georg von; Wagner, Stefan; Harhoff, Dietmar - 2009
The existing literature identifies patent thickets indirectly. In this paper we propose a novel measure based on patent citations which allows us to measure the density of patent thickets directly. We discuss the algorithm which generates the measure and present descriptive results validating...
Persistent link: https://www.econbiz.de/10003922557
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Incidence and Growth of Patent Thickets - The Impact of Technological Opportunities and Complexity
Harhoff, Dietmar; von Graevenitz, Georg; Wagner, Stefan - C.E.P.R. Discussion Papers - 2008
patenting in complex and discrete technologies. The model captures how competition for patent portfolios and complementarity of … patents affect patenting incentives. We show that lower technological opportunities increase patenting incentives in complex … technologies while they decrease incentives in discrete technologies. Also, more competitors increase patenting incentives in …
Persistent link: https://www.econbiz.de/10005123536
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Innovation creation and diffusion in a social network: an agent based approach
Lamieri, Marco; Ietri, Daniele - Volkswirtschaftliche Fakultät, … - 2004
techniques in social science and economics as a way to investigate complexity. The model investigates the dynamics of a …
Persistent link: https://www.econbiz.de/10005787108
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Trust and Complexity in Vertical Relationships
Calzolari, Giacomo; Felli, Leonardo; Koenen, Johannes; … - 2024
complexity is associated with high contract incompleteness and hence the increased relevance of trust-based relational contracts … procurement, again for low tech objects. This complexity-based difference persists even when the same supplier provides both types … contracting model, where the cost of switching suppliers is technology-specific and increases with object complexity, shifting …
Persistent link: https://www.econbiz.de/10015047212
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Innovation Beyond Patents: Technological Complexity as a Protection against Imitation
Henry, Emeric; Ruiz-Aliseda, Francisco - C.E.P.R. Discussion Papers - 2012
A large portion of innovators do not patent their inventions. This is a relative puzzle since innovators are often perceived to be at the mercy of imitators in the absence of legal protection. In practice, innovators however invest actively in making their products technologically hard to...
Persistent link: https://www.econbiz.de/10011084053
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On the Origins of the Worldwide Surge in Patenting: An Industry Perspective on the R&D-patent Relationship
van Pottelsberghe de la Potterie, Bruno; Danguy, Jérôme; … - European Centre for Advanced Research in Economics and … - 2013
This paper decomposes the R&D-patent relationship at the industry level to shed light on thesources of the worldwide surge in patent applications. The empirical analysis is based on aunique dataset that includes 5 patent indicators computed for 18 industries in 19 countriescovering the period...
Persistent link: https://www.econbiz.de/10010826322
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On the Origins of the Worldwide Surge in Patenting: An Industry Perspective on the R&D-Patent Relationship
Danguy, Jérôme; Rassenfosse, Gaétan de; Potterie, … - Melbourne Institute of Applied Economic and Social … - 2013
This paper decomposes the R&D-patent relationship at the industry level to shed light on the sources of the worldwide surge in patent applications. The empirical analysis is based on a unique dataset that includes 5 patent indicators computed for 18 industries in 19 countries covering the period...
Persistent link: https://www.econbiz.de/10010640965
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Trust and complexity in vertical relationships
Calzolari, Giacomo; Felli, Leonardo; Koenen, Johannes; … - 2024
complexity is associated with high contract incompleteness and hence the increased relevance of trust-based relational contracts … procurement, again for low tech objects. This complexity-based difference persists even when the same supplier provides both types … contracting model, where the cost of switching suppliers is technology-specific and increases with object complexity, shifting …
Persistent link: https://www.econbiz.de/10014556693