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Intellectual property rights in a quality-ladder model with persistent leadership

  • Christian Kiedaisch

This article analyzes the effects of intellectual property rights in a quality-ladder model in which incumbent firms preemptively innovate in order to keep their position of leadership. Unlike in models with leapfrogging, granting non-expiring forward protection reduces the rate of innovation and imposing a non-obviousness requirement reduces R&D spending. It is shown that full protection against imitation, granted independently of the size of the lead, maximizes the average innovation rate.

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Paper provided by Department of Economics - University of Zurich in its series ECON - Working Papers with number 078.

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Date of creation: May 2012
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Handle: RePEc:zur:econwp:078
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  1. Harris, Christopher & Howitt, Peter & Vickers, John & Aghion, Philippe, 2001. "Competition, Imitation and Growth with Step-by-Step Innovation," Scholarly Articles 12375013, Harvard University Department of Economics.
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  12. Dirk Czarnitzki & Federico Etro & Kornelius Kraft, 2014. "Endogenous Market Structures and Innovation by Leaders: An Empirical Test," Economica, London School of Economics and Political Science, vol. 81(321), pages 117-139, 01.
  13. Horowitz, Andrew W & Lai, Edwin L-C, 1996. "Patent Length and the Rate of Innovation," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 37(4), pages 785-801, November.
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  27. Kenneth Arrow, 1962. "Economic Welfare and the Allocation of Resources for Invention," NBER Chapters, in: The Rate and Direction of Inventive Activity: Economic and Social Factors, pages 609-626 National Bureau of Economic Research, Inc.
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