IDEAS home Printed from
   My bibliography  Save this article

Are patents strategic barriers to entry?


  • Langinier, Corinne


Patent protection restricts entry rather than preventing it. In case of a process innovation, it forces a potential entrant to sufficiently differentiate his production technology. We investigate whether a patentholder threatened by entry can strategically renew her patent. For low demand, the patent renewal is sufficient to deter entry, whereas a high demand attracts competitor, even if there is a patent. On the other hand, the renewal decision can signal information to an uninformed entrant whenever the patentholder is informed. This may act as a barrier to entry. Thus, a patent is renewed more frequently in presence of asymmetric information.
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • Langinier, Corinne, 2004. "Are patents strategic barriers to entry?," Journal of Economics and Business, Elsevier, vol. 56(5), pages 349-361.
  • Handle: RePEc:eee:jebusi:v:56:y:2004:i:5:p:349-361

    Download full text from publisher

    File URL:
    Download Restriction: Full text for ScienceDirect subscribers only

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

    Other versions of this item:

    References listed on IDEAS

    1. Milgrom, Paul & Roberts, John, 1982. "Limit Pricing and Entry under Incomplete Information: An Equilibrium Analysis," Econometrica, Econometric Society, vol. 50(2), pages 443-459, March.
    2. Grabowski, Henry, 2002. "Patents, Innovation and Access to New Pharmaceuticals," Working Papers 02-28, Duke University, Department of Economics.
    3. van Dijk, Theon, 1996. "Patent Height and Competition in Product Improvements," Journal of Industrial Economics, Wiley Blackwell, vol. 44(2), pages 151-167, June.
    4. Claude Crampes & Corinne Langinier, 1998. "Information Disclosure in the REnewal of Patent," Annals of Economics and Statistics, GENES, issue 49-50, pages 265-288.
    5. Suzanne Scotchmer & Jerry Green, 1990. "Novelty and Disclosure in Patent Law," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 131-146, Spring.
    6. 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.
    7. repec:adr:anecst:y:1998:i:49-50:p:10 is not listed on IDEAS
    8. Richard Gilbert & Carl Shapiro, 1990. "Optimal Patent Length and Breadth," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 106-112, Spring.
    9. In-Koo Cho & David M. Kreps, 1987. "Signaling Games and Stable Equilibria," The Quarterly Journal of Economics, Oxford University Press, vol. 102(2), pages 179-221.
    10. Bester, Helmut & Petrakis, Emmanuel, 1993. "The incentives for cost reduction in a differentiated industry," International Journal of Industrial Organization, Elsevier, vol. 11(4), pages 519-534.
    11. Henry Grabowski, 2002. "Patents, Innovation and Access to New Pharmaceuticals," Journal of International Economic Law, Oxford University Press, vol. 5(4), pages 849-860, December.
    12. Kortum, Samuel & Lerner, Josh, 1999. "What is behind the recent surge in patenting?1," Research Policy, Elsevier, vol. 28(1), pages 1-22, January.
    13. Henry Grabowski, 2003. "Patents, Innovation and Access to New Pharmaceuticals," Levine's Working Paper Archive 618897000000000656, David K. Levine.
    14. Horstmann, Ignatius & MacDonald, Glenn M & Slivinski, Alan, 1985. "Patents as Information Transfer Mechanisms: To Patent or (Maybe) Not to Patent," Journal of Political Economy, University of Chicago Press, vol. 93(5), pages 837-858, October.
    15. Mukesh Eswaran & Nancy Gallini, 1996. "Patent Policy and the Direction of Technological Change," RAND Journal of Economics, The RAND Corporation, vol. 27(4), pages 722-746, Winter.
    Full references (including those not matched with items on IDEAS)


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

    Cited by:

    1. Jinyoung Kim, 2010. "Patent Portfolio Management of Sequential Innovations," Discussion Paper Series 1005, Institute of Economic Research, Korea University.
    2. Jinyoung Kim, 2015. "Patent Portfolio Management of Sequential Innovations: Theory and Empirics," Discussion Paper Series 1504, Institute of Economic Research, Korea University.
    3. Jinyoung Kim, 2015. "Patent Portfolio Management of Sequential Inventions: Evidence from US Patent Renewal Data," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 47(2), pages 195-218, September.
    4. repec:eee:rensus:v:76:y:2017:i:c:p:1080-1107 is not listed on IDEAS
    5. Kurt R. Brekke & Odd Rune Straume, 2008. "Pharmaceutical Patents: Incentives for R&D or Marketing?," CESifo Working Paper Series 2433, CESifo Group Munich.

    More about this item


    Access and download statistics


    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:jebusi:v:56:y:2004:i:5:p:349-361. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu). General contact details of provider: .

    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 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.

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

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.