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Economic Growth with Imperfect Protection of Intellectual Property Rights

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  • Ryo Horii

    ()
    (Graduate School of Economics, Osaka University)

  • Tatsuro Iwaisako

    ()
    (Faculty of Economics, Ritsumeikan University)

Abstract

The growth effects of intellectual property right (IPR) protection are examined in a quality-ladder model of endogenous growth. Stronger IPR protection, which reduces the probability of imitation, raises the reward for innovation. However, stronger protection reduces the number of competitive sectors, in which it is easier to innovate than in monopolistic sectors, thus concentrating researchers into fewer competitive sectors. As R&D projects take time until they are completed, concentration of R&D activity in a field raises the possibility of duplication of innovation, thereby hindering growth. In several settings, we show that imperfect, rather than perfect, protection maximizes growth.

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Bibliographic Info

Paper provided by Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP) in its series Discussion Papers in Economics and Business with number 05-23.

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Length: 39 pages
Date of creation: Aug 2005
Date of revision:
Handle: RePEc:osk:wpaper:0523

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Web page: http://www.econ.osaka-u.ac.jp/
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Keywords: intellectual property rights; endogenous growth; quality ladder; imitation; leapfrogging; duplication.;

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