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Economic Growth with Imperfect Protection of Intellectual Property Rights

Ryo Horii and Tatsuro Iwaisako ()

No 05-23, Discussion Papers in Economics and Business from Osaka University, Graduate School of Economics

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.

Keywords: intellectual property rights; endogenous growth; quality ladder; imitation; leapfrogging; duplication.; intellectual property rights; endogenous growth; quality ladder; imitation; leapfrogging; duplication. (search for similar items in EconPapers)
JEL-codes: O31 O34 O41 (search for similar items in EconPapers)
Pages: 39 pages
Date: 2005-08
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Journal Article: Economic Growth with Imperfect Protection of Intellectual Property Rights (2007) Downloads
Working Paper: Economic Growth with Imperfect Protection of Intellectual Property Rights (2006) Downloads
Working Paper: Economic Growth with Imperfect Protection of Intellectual Property Rights (2005) Downloads
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