Nothing Special   »   [go: up one dir, main page]
IDEAS home Printed from https://ideas.repec.org/p/pra/mprapa/16918.html
   My bibliography  Save this paper

Effects of Patent Length on R&D: A Quantitative DGE Analysis

Author

Listed:
  • Chu, Angus C.
Abstract
This paper develops an R&D-growth model and calibrates the model to aggregate data of the US economy to quantify a structural relationship between patent length, R&D and consumption. Under parameter values that match the empirical flow-profit depreciation rate of patents and other key features of the US economy, extending the patent length beyond 20 years leads to a negligible increase in R&D despite equilibrium R&D underinvestment. In contrast, shortening the patent length leads to a significant reduction in R&D and consumption. Finally, this paper also analytically derives and quantifies a dynamic distortionary effect of patent length on capital investment.

Suggested Citation

  • Chu, Angus C., 2009. "Effects of Patent Length on R&D: A Quantitative DGE Analysis," MPRA Paper 16918, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:16918
    as

    Download full text from publisher

    File URL: https://mpra.ub.uni-muenchen.de/16918/1/MPRA_paper_16918.pdf
    File Function: original version
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    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. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-351, March.
    4. Charles I. Jones, 1999. "Growth: With or Without Scale Effects?," American Economic Review, American Economic Association, vol. 89(2), pages 139-144, May.
    5. Charles I. Jones, 1995. "Time Series Tests of Endogenous Growth Models," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 110(2), pages 495-525.
    6. 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.
    7. Gene M. Grossman & Elhanan Helpman, 1991. "Quality Ladders in the Theory of Growth," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 58(1), pages 43-61.
    8. 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.
    9. 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.
    10. 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.
    11. 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.
    12. Richard Gilbert & Carl Shapiro, 1990. "Optimal Patent Length and Breadth," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 106-112, Spring.
    13. 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.
    14. Jaffe, Adam B., 2000. "The U.S. patent system in transition: policy innovation and the innovation process," Research Policy, Elsevier, vol. 29(4-5), pages 531-557, April.
    15. Francisco L. Rivera-Batiz & Luis A. Rivera-Batiz, 2018. "Economic Integration and Endogenous Growth," World Scientific Book Chapters, in: Francisco L Rivera-Batiz & Luis A Rivera-Batiz (ed.), International Trade, Capital Flows and Economic Development, chapter 1, pages 3-32, World Scientific Publishing Co. Pte. Ltd..
    16. Romer, Paul M, 1990. "Endogenous Technological Change," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages 71-102, October.
    17. Tandon, Pankaj, 1982. "Optimal Patents with Compulsory Licensing," Journal of Political Economy, University of Chicago Press, vol. 90(3), pages 470-486, June.
    18. Charles I. Jones & John C. Williams, 1998. "Measuring the Social Return to R&D," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(4), pages 1119-1135.
    19. Daron Acemoglu, 2007. "Introduction to Modern Economic Growth," Levine's Bibliography 122247000000001721, UCLA Department of Economics.
    20. 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.
    21. Chien-fu Chou & Oz Shy, 1993. "The Crowding-Out Effects of Long Duration of Patents," RAND Journal of Economics, The RAND Corporation, vol. 24(2), pages 304-312, Summer.
    22. Diego Comin, 2004. "R&D: A Small Contribution to Productivity Growth," Journal of Economic Growth, Springer, vol. 9(4), pages 391-421, December.
    23. Rachel Ngai & Roberto Samaniego, 2011. "Accounting for Research and Productivity Growth Across Industries," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 14(3), pages 475-495, July.
    24. 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.
    25. Basu, Susanto & Fernald, John G, 1997. "Returns to Scale in U.S. Production: Estimates and Implications," Journal of Political Economy, University of Chicago Press, vol. 105(2), pages 249-283, April.
    26. Bessen, James, 2008. "The value of U.S. patents by owner and patent characteristics," Research Policy, Elsevier, vol. 37(5), pages 932-945, June.
    27. Jones, Charles I, 1995. "R&D-Based Models of Economic Growth," Journal of Political Economy, University of Chicago Press, vol. 103(4), pages 759-784, August.
    28. John Laitner, 1982. "Monopoly and Long-Run Capital Accumulation," Bell Journal of Economics, The RAND Corporation, vol. 13(1), pages 143-157, Spring.
    29. Tatsuro Iwaisako & Koichi Futagami, 2003. "Patent Policy in an Endogenous Growth Model," Journal of Economics, Springer, vol. 78(3), pages 239-258, March.
    30. Li, Chol-Won, 2001. "On the Policy Implications of Endogenous Technological Progress," Economic Journal, Royal Economic Society, vol. 111(471), pages 164-179, May.
    31. Jean Olson Lanjouw, 1998. "Patent Protection in the Shadow of Infringement: Simulation Estimations of Patent Value," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 65(4), pages 671-710.
    32. 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.
    33. 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.
    34. Suzanne Scotchmer, 2006. "Innovation and Incentives," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262693437, April.
    35. Judd, Kenneth L, 1985. "On the Performance of Patents," Econometrica, Econometric Society, vol. 53(3), pages 567-585, May.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Angus Chu, 2009. "Effects of blocking patents on R&D: a quantitative DGE analysis," Journal of Economic Growth, Springer, vol. 14(1), pages 55-78, March.
    2. Chu, Angus C., 2009. "Macroeconomic Effects of Intellectual Property Rights: A Survey," MPRA Paper 17342, University Library of Munich, Germany.
    3. Angus C. Chu, 2024. "Macroeconomic effects of intellectual property rights: an updated survey," Chapters, in: Walter G. Park (ed.), Handbook of Innovation and Intellectual Property Rights, chapter 2, pages 13-26, Edward Elgar Publishing.
    4. Chu, Angus C. & Furukawa, Yuichi, 2011. "On the optimal mix of patent instruments," Journal of Economic Dynamics and Control, Elsevier, vol. 35(11), pages 1964-1975.
    5. Angus C. Chu, 2022. "Patent policy and economic growth: A survey," Manchester School, University of Manchester, vol. 90(2), pages 237-254, March.
    6. Hu, Mei-Ying & Lu, You-Xun & Lai, Ching-chong, 2023. "Patent term extensions and commercialization lags in the pharmaceutical industry: A growth-theoretic analysis," Journal of Macroeconomics, Elsevier, vol. 76(C).
    7. Angus Chu & Guido Cozzi & Chih-Hsing Liao, 2013. "Endogenous fertility and human capital in a Schumpeterian growth model," Journal of Population Economics, Springer;European Society for Population Economics, vol. 26(1), pages 181-202, January.
    8. Chu, Angus C. & Cozzi, Guido & Galli, Silvia, 2012. "Does intellectual monopoly stimulate or stifle innovation?," European Economic Review, Elsevier, vol. 56(4), pages 727-746.
    9. Yibai Yang, 2018. "On the Optimality of IPR Protection with Blocking Patents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 27, pages 205-230, January.
    10. Angus C. Chu & Ching‐Chong Lai & Chih‐Hsing Liao, 2019. "A Tale of Two Growth Engines: Interactive Effects of Monetary Policy and Intellectual Property Rights," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 51(7), pages 2029-2052, October.
    11. Shiyuan Pan & Heng-fu Zou & Tailong Li, 2010. "Patent Protection, Technological Change and Wage Inequality," CEMA Working Papers 437, China Economics and Management Academy, Central University of Finance and Economics.
    12. Lin, Hwan C., 2016. "The switch from patents to state-dependent prizes for technological innovation," Journal of Macroeconomics, Elsevier, vol. 50(C), pages 193-223.
    13. Reinan Ribeiro & David Turchick, 2014. "Optimal patent breadth in a horizontal innovation growth model," Working Papers, Department of Economics 2014_15, University of São Paulo (FEA-USP).
    14. Angus C. Chu, 2010. "Effects of Patent Policy on Income and Consumption Inequality in a R&D Growth Model," Southern Economic Journal, John Wiley & Sons, vol. 77(2), pages 336-350, October.
    15. Akimoto, Kiyoka & Morimoto, Takaaki, 2020. "Examination and Approval of New Patents in an Endogenous Growth Model," Economic Modelling, Elsevier, vol. 91(C), pages 100-109.
    16. Ryo Horii & Tatsuro Iwaisako, 2007. "Economic Growth with Imperfect Protection of Intellectual Property Rights," Journal of Economics, Springer, vol. 90(1), pages 45-85, January.
    17. Lu, You-Xun & Lai, Ching-Chong, 2021. "Effects of patent policy on growth and inequality: A perspective of exogenous and endogenous quality improvements," MPRA Paper 111183, University Library of Munich, Germany.
    18. Angus C. Chu, 2008. "Special Interest Politics And Intellectual Property Rights: An Economic Analysis Of Strengthening Patent Protection In The Pharmaceutical Industry," Economics and Politics, Wiley Blackwell, vol. 20(2), pages 185-215, June.
    19. repec:pra:mprapa:52608 is not listed on IDEAS
    20. Chu, Angus C., 2011. "The welfare cost of one-size-fits-all patent protection," Journal of Economic Dynamics and Control, Elsevier, vol. 35(6), pages 876-890, June.
    21. Encaoua, David & Guellec, Dominique & Martinez, Catalina, 2006. "Patent systems for encouraging innovation: Lessons from economic analysis," Research Policy, Elsevier, vol. 35(9), pages 1423-1440, November.

    More about this item

    Keywords

    innovation-driven growth; intellectual property rights; patent length; R&D;
    All these keywords.

    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

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:pra:mprapa:16918. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Joachim Winter (email available below). General contact details of provider: https://edirc.repec.org/data/vfmunde.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.