Patents against imitators: an empirical investigation on French data

Emmanuel Combe and Etienne Pfister ()
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Emmanuel Combe: TEAM - Théories et Applications en Microéconomie et Macroéconomie - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique
Etienne Pfister: TEAM - Théories et Applications en Microéconomie et Macroéconomie - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique

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Abstract: This paper is an empirical study of the effectiveness of patents against imitators based on French survey data. We use a multinomial ordered logit and regress patent effectiveness on qualitative and quantitative variables. We find that patent costs are not a significant limitation on patent effectiveness while patent disclosure is. We also find a positive threshold effect for size. Finally, we observe many differences between the determinants of the effectiveness of product and process patents; in particular, the former is more dependant on R&D intensity and first-mover advantage while the latter is more dependent on market share, advertisement intensity and on the presence of an internal department in charge of intellectual property rights.

Keywords: appropriation survey; innovation; patent; imitation; enquête appropriation; brevet (search for similar items in EconPapers)
Date: 2000-01
Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-03724865
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Published in 2000

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:halshs-03724865

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