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Optimal Patent Breadth: Quantifying the Effects of Increasing Patent Breadth

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  • Chu, Angus C.

Abstract

In a generalized quality-ladder growth model, this paper firstly derives the optimal patent breadth and the socially optimal profit-sharing arrangement between patentholders. In this general-equilibrium setting, it identifies and derives a dynamic distortion of markup pricing on capital accumulation that has been neglected by previous studies on patent policy. Then, it quantitatively evaluates the effects of eliminating blocking patent and increasing patent breadth, and this exercise suggests a number of findings. Firstly, the market economy underinvests in R&D so long as a non-negligible fraction of long-run TFP growth is driven by R&D. Secondly, increasing patent breadth may be an effective solution to R&D underinvestment. The resulting effect on long-run consumption can be substantial because the harmful distortionary effects are relatively insignificant. However, the damaging effect of blocking patent arising from suboptimal profit-sharing arrangements between patentholders can be quantitatively significant. Finally, it considers the effect on consumption during the transition dynamics.

Suggested Citation

  • Chu, Angus C., 2007. "Optimal Patent Breadth: Quantifying the Effects of Increasing Patent Breadth," MPRA Paper 3910, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:3910
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    References listed on IDEAS

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    1. Gene M. Grossman & Edwin L.-C. Lai, 2004. "International Protection of Intellectual Property," American Economic Review, American Economic Association, vol. 94(5), pages 1635-1653, December.
    2. Adam B. Jaffe & Josh Lerner, 2006. "Innovation and its Discontents," NBER Chapters,in: Innovation Policy and the Economy, Volume 6, pages 27-66 National Bureau of Economic Research, Inc.
    3. Jerry R. Green & Suzanne Scotchmer, 1995. "On the Division of Profit in Sequential Innovation," RAND Journal of Economics, The RAND Corporation, vol. 26(1), pages 20-33, Spring.
    4. Kortum, Samuel & Lerner, Josh, 1998. "Stronger protection or technological revolution: what is behind the recent surge in patenting?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 48(1), pages 247-304, June.
    5. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-351, March.
    6. Charles I. Jones, 1999. "Growth: With or Without Scale Effects?," American Economic Review, American Economic Association, vol. 89(2), pages 139-144, May.
    7. Charles I. Jones, 1995. "Time Series Tests of Endogenous Growth Models," The Quarterly Journal of Economics, Oxford University Press, vol. 110(2), pages 495-525.
    8. Guvenen, Fatih, 2006. "Reconciling conflicting evidence on the elasticity of intertemporal substitution: A macroeconomic perspective," Journal of Monetary Economics, Elsevier, vol. 53(7), pages 1451-1472, October.
    9. Jones, Charles I & Williams, John C, 2000. "Too Much of a Good Thing? The Economics of Investment in R&D," Journal of Economic Growth, Springer, vol. 5(1), pages 65-85, March.
    10. Gene M. Grossman & Elhanan Helpman, 1991. "Quality Ladders in the Theory of Growth," Review of Economic Studies, Oxford University Press, vol. 58(1), pages 43-61.
    11. Trimborn, Timo & Koch, Karl-Josef & Steger, Thomas M., 2008. "Multidimensional Transitional Dynamics: A Simple Numerical Procedure," Macroeconomic Dynamics, Cambridge University Press, vol. 12(03), pages 301-319, June.
    12. Hall, B. & Jaffe, A. & Trajtenberg, M., 2001. "The NBER Patent Citations Data File: Lessons, Insights and Methodological Tools," Papers 2001-29, Tel Aviv.
    13. Adam B. Jaffe & Manuel Trajtenberg, 2005. "Patents, Citations, and Innovations: A Window on the Knowledge Economy," MIT Press Books, The MIT Press, edition 1, volume 1, number 026260065x, March.
    14. Kwan, Yum K. & Lai, Edwin L. -C., 2003. "Intellectual property rights protection and endogenous economic growth," Journal of Economic Dynamics and Control, Elsevier, vol. 27(5), pages 853-873, March.
    15. Helpman, Elhanan, 1993. "Innovation, Imitation, and Intellectual Property Rights," Econometrica, Econometric Society, vol. 61(6), pages 1247-1280, November.
    16. Paul Klemperer, 1990. "How Broad Should the Scope of Patent Protection Be?," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 113-130, Spring.
    17. Hugo Hopenhayn & Gerard Llobet & Matthew Mitchell, 2006. "Rewarding Sequential Innovators: Prizes, Patents, and Buyouts," Journal of Political Economy, University of Chicago Press, vol. 114(6), pages 1041-1068, December.
    18. Laitner, John & Stolyarov, Dmitriy, 2004. "Aggregate returns to scale and embodied technical change: theory and measurement using stock market data," Journal of Monetary Economics, Elsevier, vol. 51(1), pages 191-233, January.
    19. Lutz G. Arnold, 2006. "The Dynamics of the Jones R&D Growth Model," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(1), pages 143-152, January.
    20. Ricardo J. Caballero & Adam B. Jaffe, 1993. "How High are the Giants' Shoulders: An Empirical Assessment of Knowledge Spillovers and Creative Destruction in a Model of Economic Growth," NBER Chapters,in: NBER Macroeconomics Annual 1993, Volume 8, pages 15-86 National Bureau of Economic Research, Inc.
    21. Ted O'Donoghue & Josef Zweimueller, 2004. "Patents in a Model of Endogenous Growth," Journal of Economic Growth, Springer, vol. 9(1), pages 81-123, March.
    22. Richard Gilbert & Carl Shapiro, 1990. "Optimal Patent Length and Breadth," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 106-112, Spring.
    23. Pakes, Ariel S, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," Econometrica, Econometric Society, vol. 54(4), pages 755-784, July.
    24. Ted O'Donoghue, 1998. "A Patentability Requirement for Sequential Innovation," RAND Journal of Economics, The RAND Corporation, vol. 29(4), pages 654-679, Winter.
    25. Daron Acemoglu & Ufuk Akcigit, 2006. "State-Dependent Intellectual Property Rights Policy," NBER Working Papers 12775, National Bureau of Economic Research, Inc.
    26. Tandon, Pankaj, 1982. "Optimal Patents with Compulsory Licensing," Journal of Political Economy, University of Chicago Press, vol. 90(3), pages 470-486, June.
    27. Charles I. Jones & John C. Williams, 1998. "Measuring the Social Return to R&D," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1119-1135.
    28. Ted O'Donoghue & Suzanne Scotchmer & Jacques-François Thisse, 1998. "Patent Breadth, Patent Life, and the Pace of Technological Progress," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 7(1), pages 1-32, March.
    29. Luis A. Rivera-Batiz & Paul M. Romer, 1991. "Economic Integration and Endogenous Growth," The Quarterly Journal of Economics, Oxford University Press, vol. 106(2), pages 531-555.
    30. Futagami, Koichi & Iwaisako, Tatsuro, 2007. "Dynamic analysis of patent policy in an endogenous growth model," Journal of Economic Theory, Elsevier, vol. 132(1), pages 306-334, January.
    31. Adam B. Jaffe & Josh Lerner & Scott Stern, 2001. "Innovation Policy and the Economy, Volume 1," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262600412, March.
    32. Nancy L. Stokey, 1995. "R&D and Economic Growth," Review of Economic Studies, Oxford University Press, vol. 62(3), pages 469-489.
    33. Diego Comin, 2004. "R&D: A Small Contribution to Productivity Growth," Journal of Economic Growth, Springer, vol. 9(4), pages 391-421, December.
    34. Susanto Basu, 1996. "Procyclical Productivity: Increasing Returns or Cyclical Utilization?," The Quarterly Journal of Economics, Oxford University Press, vol. 111(3), pages 719-751.
    35. Ai-Ting Goh & Jacques Olivier, 2002. "Optimal Patent Protection in a Two-Sector Economy," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 43(4), pages 1191-1214, November.
    36. Segerstrom, Paul S, 1998. "Endogenous Growth without Scale Effects," American Economic Review, American Economic Association, vol. 88(5), pages 1290-1310, December.
    37. John Laitner, 1982. "Monopoly and Long-Run Capital Accumulation," Bell Journal of Economics, The RAND Corporation, vol. 13(1), pages 143-157, Spring.
    38. Li, Chol-Won, 2001. "On the Policy Implications of Endogenous Technological Progress," Economic Journal, Royal Economic Society, vol. 111(471), pages 164-179, May.
    39. Jean Olson Lanjouw, 1998. "Patent Protection in the Shadow of Infringement: Simulation Estimations of Patent Value," Review of Economic Studies, Oxford University Press, vol. 65(4), pages 671-710.
    40. Robert M. Hunt, 1999. "Nonobviousness and the incentive to innovate: an economic analysis of intellectual property reform," Working Papers 99-3, Federal Reserve Bank of Philadelphia.
    41. Nancy T. Gallini, 2002. "The Economics of Patents: Lessons from Recent U.S. Patent Reform," Journal of Economic Perspectives, American Economic Association, vol. 16(2), pages 131-154, Spring.
    42. Judd, Kenneth L, 1985. "On the Performance of Patents," Econometrica, Econometric Society, vol. 53(3), pages 567-585, May.
    43. Steger Thomas M., 2005. "Non-Scale Models of R&D-based Growth: The Market Solution," The B.E. Journal of Macroeconomics, De Gruyter, vol. 5(1), pages 1-30, February.
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    Keywords

    endogenous growth; intellectual property rights; patent breadth; R&D;

    JEL classification:

    • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives

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