IDEAS home Printed from https://ideas.repec.org/p/nbr/nberwo/10930.html
   My bibliography  Save this paper

The Distortionary Effects of Government Procurement: Evidence from Medicaid Prescription Drug Purchasing

Author

Listed:
  • Mark Duggan
  • Fiona Scott Morton

Abstract

The federal-state Medicaid program insures 43 million people for virtually all of the prescription drugs approved by the FDA. To determine the price that it will pay for a drug treatment, the government uses the average price in the private sector for that same drug. Assuming that Medicaid recipients are unresponsive to price because of the program's zero co-pay, this rule will increase prices for non-Medicaid consumers. Using drug utilization and expenditure data for the top 200 drugs in 1997 and in 2002, we investigate the relationship between the Medicaid market share (MMS) and the average price of a prescription. Our findings suggest that the Medicaid rules substantially increase equilibrium prices for non-Medicaid consumers. Specifically, a ten percentage-point increase in the MMS is associated with a ten percent increase in the average price of a prescription. This result is robust to the inclusion of controls for a drug's therapeutic class, the existence of generic competition, the number of brand competitors, and the years since the drug entered the market. We also demonstrate that the Medicaid rules increase a firm's incentive to introduce new versions of a drug at higher prices and find empirical evidence in support of this for drugs that do not face generic competition. Taken together, our findings suggest that government procurement can have an important effect on equilibrium prices in the private sector.

Suggested Citation

  • Mark Duggan & Fiona Scott Morton, 2004. "The Distortionary Effects of Government Procurement: Evidence from Medicaid Prescription Drug Purchasing," NBER Working Papers 10930, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:10930 Note: HC IO
    as

    Download full text from publisher

    File URL: http://www.nber.org/papers/w10930.pdf
    Download Restriction: no

    Other versions of this item:

    References listed on IDEAS

    as
    1. Currie, Janet & Grogger, Jeffrey, 2002. "Medicaid expansions and welfare contractions: offsetting effects on prenatal care and infant health?," Journal of Health Economics, Elsevier, vol. 21(2), pages 313-335, March.
    2. 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.
    3. Duggan, Mark, 2005. "Do new prescription drugs pay for themselves?: The case of second-generation antipsychotics," Journal of Health Economics, Elsevier, vol. 24(1), pages 1-31, January.
    4. Jonathan Gruber & Aaron Yelowitz, 1999. "Public Health Insurance and Private Savings," Journal of Political Economy, University of Chicago Press, vol. 107(6), pages 1249-1274, December.
    5. Richard G. Frank & David S. Salkever, 1991. "Pricing, Patent Loss and the Market For Pharmaceuticals," NBER Working Papers 3803, National Bureau of Economic Research, Inc.
    6. Olson, Mary, 1996. "Substitution in Regulatory Agencies: FDA Enforcement Alternatives," Journal of Law, Economics, and Organization, Oxford University Press, vol. 12(2), pages 376-407, October.
    7. Holmstrom, Bengt & Milgrom, Paul, 1991. "Multitask Principal-Agent Analyses: Incentive Contracts, Asset Ownership, and Job Design," Journal of Law, Economics, and Organization, Oxford University Press, vol. 7(0), pages 24-52, Special I.
    8. Aaron S. Yelowitz, 1995. "The Medicaid Notch, Labor Supply, and Welfare Participation: Evidence from Eligibility Expansions," The Quarterly Journal of Economics, Oxford University Press, vol. 110(4), pages 909-939.
    9. Robert A. Moffitt, 2003. "Means-Tested Transfer Programs in the United States," NBER Books, National Bureau of Economic Research, Inc, number moff03-1, January.
    10. David M. Cutler & Jonathan Gruber, 1996. "Does Public Insurance Crowd out Private Insurance?," The Quarterly Journal of Economics, Oxford University Press, vol. 111(2), pages 391-430.
    Full references (including those not matched with items on IDEAS)

    More about this item

    JEL classification:

    • H32 - Public Economics - - Fiscal Policies and Behavior of Economic Agents - - - Firm
    • H57 - Public Economics - - National Government Expenditures and Related Policies - - - Procurement
    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

    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:nbr:nberwo:10930. 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: (). General contact details of provider: http://edirc.repec.org/data/nberrus.html .

    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.