IDEAS home Printed from https://ideas.repec.org/a/eee/respol/v52y2023i9s0048733323001385.html
   My bibliography  Save this article

Measuring follow-on innovation

Author

Listed:
  • Freilich, Janet
  • Shahshahani, Sepehr

Abstract

How patents affect follow-on innovation is a key question for the patent system. We disaggregate follow-on innovation into activities that infringe patents and others that do not infringe but can be indirectly affected by patents. Replicating an important study using our disaggregated measure, we find that 87 percent of follow-on scientific publications describing patented genes do not constitute patent infringement. Supplementing our empirical strategy with data on patent expiration dates, we find that gene patents which are not close to expiration cause an increase in noninfringing follow-on research, but the effect disappears for patents close to expiration. Our nuanced measure helps better identify the mechanisms of patents’ effect, reconcile disparate results in the literature, and evaluate policy reform.

Suggested Citation

  • Freilich, Janet & Shahshahani, Sepehr, 2023. "Measuring follow-on innovation," Research Policy, Elsevier, vol. 52(9).
    • Handle: RePEc:eee:respol:v:52:y:2023:i:9:s0048733323001385
    DOI: 10.1016/j.respol.2023.104854
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0048733323001385
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.respol.2023.104854?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Lanjouw, Jean O & Schankerman, Mark, 2001. "Characteristics of Patent Litigation: A Window on Competition," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 129-151, Spring.
    2. Mark A. Lemley & Carl Shapiro, 2005. "Probabilistic Patents," Journal of Economic Perspectives, American Economic Association, vol. 19(2), pages 75-98, Spring.
    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. Anton, James J & Yao, Dennis A, 1994. "Expropriation and Inventions: Appropriable Rents in the Absence of Property Rights," American Economic Review, American Economic Association, vol. 84(1), pages 190-209, March.
    5. Heidi L. Williams, 2013. "Intellectual Property Rights and Innovation: Evidence from the Human Genome," Journal of Political Economy, University of Chicago Press, vol. 121(1), pages 1-27.
    6. Emeric Henry & Carlos J. Ponce, 2011. "Waiting to Imitate: On the Dynamic Pricing of Knowledge," Journal of Political Economy, University of Chicago Press, vol. 119(5), pages 959-981.
    7. Bronwyn H. Hall & Adam Jaffe & Manuel Trajtenberg, 2005. "Market Value and Patent Citations," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 16-38, Spring.
    8. Fiona Murray & Philippe Aghion & Mathias Dewatripont & Julian Kolev & Scott Stern, 2016. "Of Mice and Academics: Examining the Effect of Openness on Innovation," American Economic Journal: Economic Policy, American Economic Association, vol. 8(1), pages 212-252, February.
    9. Reinganum, Jennifer F, 1982. "A Dynamic Game of R and D: Patent Protection and Competitive Behavior," Econometrica, Econometric Society, vol. 50(3), pages 671-688, May.
    10. Josh Feng & Xavier Jaravel, 2020. "Crafting Intellectual Property Rights: Implications for Patent Assertion Entities, Litigation, and Innovation," American Economic Journal: Applied Economics, American Economic Association, vol. 12(1), pages 140-181, January.
    11. 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.
    12. Galasso, Alberto & Schankerman, Mark, 2015. "Patents and cumulative innovation: causal evidence from the courts," LSE Research Online Documents on Economics 61614, London School of Economics and Political Science, LSE Library.
    13. Leonid Kogan & Dimitris Papanikolaou & Amit Seru & Noah Stoffman, 2017. "Technological Innovation, Resource Allocation, and Growth," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 132(2), pages 665-712.
    14. Kitch, Edmund W, 1977. "The Nature and Function of the Patent System," Journal of Law and Economics, University of Chicago Press, vol. 20(2), pages 265-290, October.
    15. Patrick Gaulé, 2018. "Patents and the Success of Venture‐Capital Backed Startups: Using Examiner Assignment to Estimate Causal Effects," Journal of Industrial Economics, Wiley Blackwell, vol. 66(2), pages 350-376, June.
    16. Seongwuk Moon, 2011. "How does the management of research impact the disclosure of knowledge? Evidence from scientific publications and patenting behavior," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 20(1), pages 1-32.
    17. Mark A. Lemley & Bhaven Sampat, 2012. "Examiner Characteristics and Patent Office Outcomes," The Review of Economics and Statistics, MIT Press, vol. 94(3), pages 817-827, August.
    18. Glenn C. Loury, 1979. "Market Structure and Innovation," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 93(3), pages 395-410.
    19. Petra Moser, 2012. "Innovation without Patents: Evidence from World's Fairs," Journal of Law and Economics, University of Chicago Press, vol. 55(1), pages 43-74.
    20. Michael L. Katz & Carl Shapiro, 1986. "How to License Intangible Property," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 101(3), pages 567-589.
    21. Joshua S. Gans & David H. Hsu & Scott Stern, 2008. "The Impact of Uncertain Intellectual Property Rights on the Market for Ideas: Evidence from Patent Grant Delays," Management Science, INFORMS, vol. 54(5), pages 982-997, May.
    22. Harhoff, Dietmar & Scherer, Frederic M. & Vopel, Katrin, 2003. "Citations, family size, opposition and the value of patent rights," Research Policy, Elsevier, vol. 32(8), pages 1343-1363, September.
    23. Samuel S. Kortum, 1997. "Research, Patenting, and Technological Change," Econometrica, Econometric Society, vol. 65(6), pages 1389-1420, November.
    24. Michael J. Meurer, 1989. "The Settlement of Patent Litigation," RAND Journal of Economics, The RAND Corporation, vol. 20(1), pages 77-91, Spring.
    25. Bessen, James, 2008. "The value of U.S. patents by owner and patent characteristics," Research Policy, Elsevier, vol. 37(5), pages 932-945, June.
    26. Bhaven Sampat & Heidi L. Williams, 2019. "How Do Patents Affect Follow-On Innovation? Evidence from the Human Genome," American Economic Review, American Economic Association, vol. 109(1), pages 203-236, January.
    27. Joan Farre‐Mensa & Deepak Hegde & Alexander Ljungqvist, 2020. "What Is a Patent Worth? Evidence from the U.S. Patent “Lottery”," Journal of Finance, American Finance Association, vol. 75(2), pages 639-682, April.
    28. Petra Moser, 2005. "How Do Patent Laws Influence Innovation? Evidence from Nineteenth-Century World's Fairs," American Economic Review, American Economic Association, vol. 95(4), pages 1214-1236, September.
    29. Michael D. Frakes & Melissa F. Wasserman, 2017. "Is the Time Allocated to Review Patent Applications Inducing Examiners to Grant Invalid Patents? Evidence from Microlevel Application Data," The Review of Economics and Statistics, MIT Press, vol. 99(3), pages 550-563, July.
    30. repec:hal:wpspec:info:hdl:2441/eu4vqp9ompqllr09iatr32p81 is not listed on IDEAS
    31. Jeffrey L. Furman & Scott Stern, 2011. "Climbing atop the Shoulders of Giants: The Impact of Institutions on Cumulative Research," American Economic Review, American Economic Association, vol. 101(5), pages 1933-1963, August.
    32. Tom Lee & Louis L. Wilde, 1980. "Market Structure and Innovation: A Reformulation," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 94(2), pages 429-436.
    33. James Bessen & Eric Maskin, 2009. "Sequential innovation, patents, and imitation," RAND Journal of Economics, RAND Corporation, vol. 40(4), pages 611-635, December.
    34. Joshua S. Gans & David H. Hsu & Scott Stern, 2002. "When Does Start-Up Innovation Spur the Gale of Creative Destruction?," RAND Journal of Economics, The RAND Corporation, vol. 33(4), pages 571-586, Winter.
    35. Hall, Bronwyn H & Ziedonis, Rosemarie Ham, 2001. "The Patent Paradox Revisited: An Empirical Study of Patenting in the U.S. Semiconductor Industry, 1979-1995," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 101-128, Spring.
    36. E. Glen Weyl & Jean Tirole, 2012. "Market Power Screens Willingness-to-Pay," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 127(4), pages 1971-2003.
    37. Fiona E. Murray & Scott Stern, 2007. "Do Formal Intellectual Property Rights Hinder the Free Flow of Scientific Knowledge?: An Empirical Test of the Anti-Commons Hypothesis," NBER Chapters, in: Academic Science and Entrepreneurship: Dual Engines of Growth, National Bureau of Economic Research, Inc.
    38. Ashish Arora, 1995. "Licensing Tacit Knowledge: Intellectual Property Rights And The Market For Know-How," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 4(1), pages 41-60.
    39. Patrick Kline & Neviana Petkova & Heidi Williams & Owen Zidar, 2019. "Who Profits from Patents? Rent-Sharing at Innovative Firms," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 134(3), pages 1343-1404.
    40. repec:hal:spmain:info:hdl:2441/eu4vqp9ompqllr09iatr32p81 is not listed on IDEAS
    41. Manuel Trajtenberg & Adam B. Jaffe & Michael S. Fogarty, 2000. "Knowledge Spillovers and Patent Citations: Evidence from a Survey of Inventors," American Economic Review, American Economic Association, vol. 90(2), pages 215-218, May.
    42. Sepehr Shahshahani, 2018. "The Role of Courts in Technology Policy," Journal of Law and Economics, University of Chicago Press, vol. 61(1), pages 37-61.
    43. Alberto Galasso & Mark Schankerman, 2015. "Patents and Cumulative Innovation: Causal Evidence from the Courts," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 130(1), pages 317-369.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Fabian Gaessler & Dietmar Harhoff & Stefan Sorg & Georg von Graevenitz, 2024. "Patents, Freedom to Operate, and Follow-on Innovation: Evidence from Post-Grant Opposition," Rationality and Competition Discussion Paper Series 494, CRC TRR 190 Rationality and Competition.

    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. Bhaven Sampat & Heidi L. Williams, 2019. "How Do Patents Affect Follow-On Innovation? Evidence from the Human Genome," American Economic Review, American Economic Association, vol. 109(1), pages 203-236, January.
    2. Joan Farre‐Mensa & Deepak Hegde & Alexander Ljungqvist, 2020. "What Is a Patent Worth? Evidence from the U.S. Patent “Lottery”," Journal of Finance, American Finance Association, vol. 75(2), pages 639-682, April.
    3. Fabian Gaessler & Dietmar Harhoff & Stefan Sorg & Georg von Graevenitz, 2024. "Patents, Freedom to Operate, and Follow-on Innovation: Evidence from Post-Grant Opposition," Rationality and Competition Discussion Paper Series 494, CRC TRR 190 Rationality and Competition.
    4. Cesare Righi & Davide Cannito & Theodor Vladasel, 2023. "Continuing patent applications at the USPTO," Economics Working Papers 1855, Department of Economics and Business, Universitat Pompeu Fabra.
    5. Righi, Cesare & Cannito, Davide & Vladasel, Theodor, 2023. "Continuing patent applications at the USPTO," Research Policy, Elsevier, vol. 52(4).
    6. Nancy Gallini, 2017. "Do patents work? Thickets, trolls and antibiotic resistance," Canadian Journal of Economics, Canadian Economics Association, vol. 50(4), pages 893-926, November.
    7. Ljungqvist, Alexander & Farre-Mensa, Joan & Hegde, Deepak, 2016. "The Bright Side of Patents," CEPR Discussion Papers 11091, C.E.P.R. Discussion Papers.
    8. Filippo Mezzanotti, 2021. "Roadblock to Innovation: The Role of Patent Litigation in Corporate R&D," Management Science, INFORMS, vol. 67(12), pages 7362-7390, December.
    9. Cesare Righi & Davide Cannito & Theodor Vladasel, 2023. "Continuing Patent Applications at the USPTO," Working Papers 1382, Barcelona School of Economics.
    10. Gambardella, Alfonso, 2023. "Private and social functions of patents: Innovation, markets, and new firms," Research Policy, Elsevier, vol. 52(7).
    11. Rockett, Katharine, 2010. "Property Rights and Invention," Handbook of the Economics of Innovation, in: Bronwyn H. Hall & Nathan Rosenberg (ed.), Handbook of the Economics of Innovation, edition 1, volume 1, chapter 0, pages 315-380, Elsevier.
    12. Kwon, Seokbeom & Marco, Alan C., 2021. "Can antitrust law enforcement spur innovation? Antitrust regulation of patent consolidation and its impact on follow-on innovations," Research Policy, Elsevier, vol. 50(9).
    13. Alberto Galasso & Mark Schankerman, 2015. "Patent Rights, Innovation and Firm Exit," NBER Working Papers 21769, National Bureau of Economic Research, Inc.
    14. Higham, Kyle & de Rassenfosse, Gaétan & Jaffe, Adam B., 2021. "Patent Quality: Towards a Systematic Framework for Analysis and Measurement," Research Policy, Elsevier, vol. 50(4).
    15. Galasso, Alberto & Schankerman, Mark, 2013. "Patents and cumulative innovation: causal evidence from the courts," LSE Research Online Documents on Economics 51539, London School of Economics and Political Science, LSE Library.
    16. Schankerman, Mark & Galasso, Alberto, 2015. "Patents Rights, Innovation and Firm Exit," CEPR Discussion Papers 10968, C.E.P.R. Discussion Papers.
    17. Mark Schankerman, 2015. "Patents Rights and Innovation by Small and Large Firms," STICERD - Economics of Industry Papers 54, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
    18. Petra Moser & Joerg Ohmstedt & Paul W. Rhode, 2018. "Patent Citations—An Analysis of Quality Differences and Citing Practices in Hybrid Corn," Management Science, INFORMS, vol. 64(4), pages 1926-1940, April.
    19. Mark Schankerman & Florian Schuett, 2022. "Patent Screening, Innovation, and Welfare [Innovation, Reallocation, and Growth]," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 89(4), pages 2101-2148.
    20. Gong, Robin Kaiji & Li, Yao Amber & Manova, Kalina & Teng Sun, Stephen, 2023. "Tickets to the global market: first US patent awards and Chinese firm exports," LSE Research Online Documents on Economics 121375, London School of Economics and Political Science, LSE Library.

    More about this item

    Keywords

    Follow-on innovation; Patents; Patent infringement; Intellectual property;
    All these keywords.

    JEL classification:

    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
    • K20 - Law and Economics - - Regulation and Business Law - - - General

    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:eee:respol:v:52:y:2023:i:9:s0048733323001385. 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: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/respol .

    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.