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Patents against imitators: an empirical investigation on French data

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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)

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.

Suggested Citation

  • Emmanuel Combe & Etienne Pfister, 2000. "Patents against imitators: an empirical investigation on French data," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-03724865, HAL.
    • Handle: RePEc:hal:cesptp:halshs-03724865
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-03724865
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    References listed on IDEAS

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