IDEAS home Printed from https://ideas.repec.org/p/gat/wpaper/1027.html
   My bibliography  Save this paper

Predation in Off-Patent Drug Markets

Author

Listed:
  • Laurent Granier

    (Université de Lyon, Lyon, F-69003, France; CNRS, GATE Lyon St Etienne, UMR 5824, 93, chemin des Mouilles, Ecully, F-69130, France; ENS-LSH, Lyon, France)

  • Sébastien Trinquart

    (UNOCAM, Paris, France)

Abstract

In 2009, Sanofi-Aventis, whose generic subsidiary is Winthrop, merges with the generic firm, Zentiva. This paper fills the gap in the theoretical literature concerning mergers in pharmaceutical markets. To prevent generic firms from increasing their market share, some brand-name firms produce generics themselves, called pseudo- generics. We develop a Cournot duopoly model by considering the pseudo-generics production as a mergers’ catalyst. We show that a brand-name company always has an incentive to purchase its competitor. The key insight of this paper is that the brand-name laboratory can increase its merger gain by producing pseudo-generics beforehand. In some cases, pseudo-generics would not otherwise be produced and this production is then a predatory strategy.

Suggested Citation

  • Laurent Granier & Sébastien Trinquart, 2010. "Predation in Off-Patent Drug Markets," Working Papers 1027, Groupe d'Analyse et de Théorie Economique Lyon St-Étienne (GATE Lyon St-Étienne), Université de Lyon.
  • Handle: RePEc:gat:wpaper:1027
    as

    Download full text from publisher

    File URL: ftp://ftp.gate.cnrs.fr/RePEc/2010/1027.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Fiona M. Scott Morton, 2002. "Horizontal Integration Between Brand and Generic Firms in the Pharmaceutical Industry," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 11(1), pages 135-168, March.
    2. Scott Morton, Fiona M., 2000. "Barriers to entry, brand advertising, and generic entry in the US pharmaceutical industry," International Journal of Industrial Organization, Elsevier, vol. 18(7), pages 1085-1104, October.
    3. Ying Kong, 2004. "The price premium of generic to brand-names and pharmaceutical price index," Applied Economics, Taylor & Francis Journals, vol. 36(7), pages 731-737.
    4. Laurent Granier & Sebastien Trinquard, 2010. "Entry deterrence and mergers under price competition in pharmaceutical markets," Applied Economics, Taylor & Francis Journals, vol. 42(3), pages 297-309.
    5. Laurent Granier, 2008. "Endogenous mergers and cost heterogeneity," Applied Economics, Taylor & Francis Journals, vol. 40(14), pages 1865-1871.
    6. Ying Kong & James R. Seldon, 2004. "Pseudo-Generic Products and Barriers to Entry in Pharmaceutical Markets," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 25(1), pages 71-86, August.
    7. Richard G. Frank & David S. Salkever, 1997. "Generic Entry and the Pricing of Pharmaceuticals," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 6(1), pages 75-90, March.
    8. Aidan Hollis, 2002. "The importance of being first: evidence from Canadian generic pharmaceuticals," Health Economics, John Wiley & Sons, Ltd., vol. 11(8), pages 723-734, December.
    9. Fiona M. Scott Morton, 1999. "Entry Decisions in the Generic Pharmaceutical Industry," RAND Journal of Economics, The RAND Corporation, vol. 30(3), pages 421-440, Autumn.
    10. Andrew Ching, 2000. "Dynamic Equilibrium in the US Prescription Drug Market After Patent Expiration," Econometric Society World Congress 2000 Contributed Papers 1242, Econometric Society.
    11. Fiona M. Scott Morton, 1999. "Entry Decisions in the Generic Pharmaceutical Industry," Yale School of Management Working Papers ysm119, Yale School of Management.
    12. Aidan Hollis, 2005. "How do Brands’ “Own Generics” Affect Pharmaceutical Prices?," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 27(4), pages 329-350, December.
    13. Grabowski, Henry G & Vernon, John M, 1992. "Brand Loyalty, Entry, and Price Competition in Pharmaceuticals after the 1984 Drug Act," Journal of Law and Economics, University of Chicago Press, vol. 35(2), pages 331-350, October.
    14. Aidan Hollis, 2003. "The Anti-Competitive Effects of Brand-Controlled "Pseudo- Generics" in the Canadian Pharmaceutical Market," Canadian Public Policy, University of Toronto Press, vol. 29(1), pages 21-31, March.
    15. Garth Saloner, 1987. "Predation, Mergers, and Incomplete Information," RAND Journal of Economics, The RAND Corporation, vol. 18(2), pages 165-186, Summer.
    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. Vasco Rodrigues & Ricardo Gonçalves & Hélder Vasconcelos, 2014. "Anti-Competitive Impact of Pseudo-Generics," Journal of Industry, Competition and Trade, Springer, vol. 14(1), pages 83-98, March.
    2. Ricardo Gonçalves & Vasco Rodrigues & Hélder Vasconcelos, 2015. "Reference pricing in the presence of pseudo-generics," International Journal of Health Economics and Management, Springer, vol. 15(3), pages 281-305, September.

    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. Laurent Granier & Sébastien Trinquard, 2011. "Predation in Off-Patent Drug Markets," Post-Print hal-00687806, HAL.
    2. Appelt, Silvia, 2010. "Authorized Generic Entry prior to Patent Expiry: Reassessing Incentives for Independent Generic Entry," Discussion Papers in Economics 11476, University of Munich, Department of Economics.
    3. Iván Moreno-Torres & Jaume Puig-Junoy & Joan-Ramon Borrell, 2009. "Generic Entry into the Regulated Spanish Pharmaceutical Market," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 34(4), pages 373-388, June.
    4. Regan, Tracy L., 2008. "Generic entry, price competition, and market segmentation in the prescription drug market," International Journal of Industrial Organization, Elsevier, vol. 26(4), pages 930-948, July.
    5. Ching, Andrew T., 2010. "Consumer learning and heterogeneity: Dynamics of demand for prescription drugs after patent expiration," International Journal of Industrial Organization, Elsevier, vol. 28(6), pages 619-638, November.
    6. Patricia M. Danzon & Michael F. Furukawa, 2011. "Cross-National Evidence on Generic Pharmaceuticals: Pharmacy vs. Physician-Driven Markets," NBER Working Papers 17226, National Bureau of Economic Research, Inc.
    7. Costa-Font, Joan & McGuire, Alistair & Varol, Nebibe, 2014. "Price regulation and relative delays in generic drug adoption," Journal of Health Economics, Elsevier, vol. 38(C), pages 1-9.
    8. Patricia M. Danzon & Eric L. Keuffel, 2014. "Regulation of the Pharmaceutical-Biotechnology Industry," NBER Chapters, in: Economic Regulation and Its Reform: What Have We Learned?, pages 407-484, National Bureau of Economic Research, Inc.
    9. Joan Costa-i-Font & Alistair McGuire & Nebibe Varol, 2011. "Does Pharmaceutical Price Regulation Affect the Adoption of Generic Competition? Evidence from the OECD, 1999-2008," CESifo Working Paper Series 3441, CESifo.
    10. Patricia M. Danzon & Andrew W. Mulcahy & Adrian K. Towse, 2015. "Pharmaceutical Pricing in Emerging Markets: Effects of Income, Competition, and Procurement," Health Economics, John Wiley & Sons, Ltd., vol. 24(2), pages 238-252, February.
    11. Lee Branstetter & Chirantan Chatterjee & Matthew J. Higgins, 2016. "Regulation and welfare: evidence from paragraph IV generic entry in the pharmaceutical industry," RAND Journal of Economics, RAND Corporation, vol. 47(4), pages 857-890, November.
    12. Clark, Robert & Fabiilli, Christopher & Lasio, Laura, 2022. "Collusion in the US generic drug industry," International Journal of Industrial Organization, Elsevier, vol. 85(C).
    13. Arcidiacono, Peter & Ellickson, Paul B. & Landry, Peter & Ridley, David B., 2013. "Pharmaceutical followers," International Journal of Industrial Organization, Elsevier, vol. 31(5), pages 538-553.
    14. Roger Feldman & Félix Lobo, 2013. "Competition in prescription drug markets: the roles of trademarks, advertising, and generic names," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(4), pages 667-675, August.
    15. Liu, Ya-Ming & Cheng, Jur-Shan, 2012. "Determinants of generic entry in the regulated Taiwanese prescription drug market," Health Policy, Elsevier, vol. 108(2), pages 228-235.
    16. Ying Kong, 2009. "Competition between brand‐name and generics – analysis on pricing of brand‐name pharmaceutical," Health Economics, John Wiley & Sons, Ltd., vol. 18(5), pages 591-606, May.
    17. Melissa Newham & Jo Seldeslachts & Albert Banal-Estanol, 2018. "Common ownership and market entry: Evidence from the pharmaceutical industry," Working Papers of Department of Management, Strategy and Innovation, Leuven 623896, KU Leuven, Faculty of Economics and Business (FEB), Department of Management, Strategy and Innovation, Leuven.
    18. Arvate, Paulo Roberto & Barbosa, Klênio & Gambardella, Dante, 2013. "Generic-branded drug competition and the price for pharmaceuticals in procurement auctions," Textos para discussão 333, FGV EESP - Escola de Economia de São Paulo, Fundação Getulio Vargas (Brazil).
    19. Lee, Chung-Ying, 2020. "Pricing strategy and moral hazard: Copay coupons in pharmaceuticals," International Journal of Industrial Organization, Elsevier, vol. 70(C).
    20. Gonzalez, Jorge & Sismeiro, Catarina & Dutta, Shantanu & Stern, Philip, 2008. "Can branded drugs benefit from generic entry? The role of detailing and price in switching to non-bioequivalent molecules," International Journal of Research in Marketing, Elsevier, vol. 25(4), pages 247-260.

    More about this item

    Keywords

    Mergers; Pharmaceutical Market; Predation; Pseudo-Generics;
    All these keywords.

    JEL classification:

    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies

    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:gat:wpaper:1027. 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: Nelly Wirth (email available below). General contact details of provider: https://edirc.repec.org/data/gateefr.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.