IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Health Insurance as a Two-Part Pricing Contract

  • Darius Lakdawalla
  • Neeraj Sood

Monopolies appear throughout health care markets, as a result of patents, limits to the extent of the market, or the presence of unique inputs and skills. In the health care industry, however, the deadweight costs of monopoly may be small or even absent. Health insurance, frequently implemented as an ex ante premium coupled with an ex post co-payment per unit consumed, effectively operates as a two-part pricing contract. This allows monopolists to extract consumer surplus without inefficiently constraining quantity. This view of health insurance contracts has several implications: (1) Low ex post copayments to insured consumers substantially reduce deadweight losses from medical care monopolies -- we calculate, for instance, that the presence of health insurance lowers monopoly loss in the US pharmaceutical market by 82 percent; (2) Price regulation or break-up of health care monopolies may be inferior to laissez-faire or simple redistribution of monopoly profits; and (3) Promoting efficiency in the health insurance market can reduce static losses in the goods market while improving the dynamic efficiency of innovation.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL:
Download Restriction: no

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 12681.

in new window

Date of creation: Nov 2006
Date of revision:
Publication status: published as Lakdawalla, Darius & Sood, Neeraj, 2013. "Health insurance as a two-part pricing contract," Journal of Public Economics, Elsevier, vol. 102(C), pages 1-12.
Handle: RePEc:nbr:nberwo:12681
Note: HC HE IO
Contact details of provider: Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
Phone: 617-868-3900
Web page:

More information through EDIRC

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Martin Gaynor & Deborah Haas-Wilson & William B. Vogt, 1998. "Are Invisible Hands Good Hands? Moral Hazard, Competition, and the Second Best in Health Care Markets," NBER Working Papers 6865, National Bureau of Economic Research, Inc.
  2. Crocker, Keith J & Moran, John R, 2003. " Contracting with Limited Commitment: Evidence from Employment-Based Health Insurance Contracts," RAND Journal of Economics, The RAND Corporation, vol. 34(4), pages 694-718, Winter.
  3. Adams, Scott, 2007. "Health insurance market reform and employee compensation: The case of pure community rating in New York," Journal of Public Economics, Elsevier, vol. 91(5-6), pages 1119-1133, June.
  4. Martin Gaynor & Deborah Haas-Wilson, 1999. "Change, Consolidation, and Competition in Health Care Markets," Journal of Economic Perspectives, American Economic Association, vol. 13(1), pages 141-164, Winter.
  5. Rothschild, Michael & Stiglitz, Joseph E, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, MIT Press, vol. 90(4), pages 630-49, November.
  6. Crew, Michael A, 1969. "Coinsurance and the Welfare Economics of Medical Care," American Economic Review, American Economic Association, vol. 59(5), pages 906-08, December.
  7. Martin Gaynor & William Vogt, 2002. "Competition Among Hospitals," GSIA Working Papers 2003-E20, Carnegie Mellon University, Tepper School of Business.
  8. Bhattacharya, Jay & Bundorf, M. Kate, 2009. "The incidence of the healthcare costs of obesity," Journal of Health Economics, Elsevier, vol. 28(3), pages 649-658, May.
  9. Pauly, Mark V., 1988. "Market power, monopsony, and health insurance markets," Journal of Health Economics, Elsevier, vol. 7(2), pages 111-128, June.
  10. Jayanta Bhattacharya & William B. Vogt, 2006. "Employment and Adverse Selection in Health Insurance," NBER Working Papers 12430, National Bureau of Economic Research, Inc.
  11. Oi, Walter Y, 1971. "A Disneyland Dilemma: Two-Part Tariffs for a Mickey Mouse Monopoly," The Quarterly Journal of Economics, MIT Press, vol. 85(1), pages 77-96, February.
  12. 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.
  13. Robert Town & Douglas Wholey & Roger Feldman & Lawton R. Burns, 2006. "The Welfare Consequences of Hospital Mergers," NBER Working Papers 12244, National Bureau of Economic Research, Inc.
  14. Jay Bhattacharya & M. Kate Bundorf, 2005. "The Incidence of the Healthcare Costs of Obesity," NBER Working Papers 11303, National Bureau of Economic Research, Inc.
  15. Katherine Ho, 2006. "The welfare effects of restricted hospital choice in the US medical care market," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 21(7), pages 1039-1079.
  16. Capps, Cory & Dranove, David & Satterthwaite, Mark, 2003. " Competition and Market Power in Option Demand Markets," RAND Journal of Economics, The RAND Corporation, vol. 34(4), pages 737-63, Winter.
  17. Lakdawalla, Darius & Sood, Neeraj, 2009. "Innovation and the welfare effects of public drug insurance," Journal of Public Economics, Elsevier, vol. 93(3-4), pages 541-548, April.
  18. Hanming Fang & Alessandro Gavazza, 2007. "Dynamic Inefficiencies in Employment-Based Health Insurance System Theory and Evidence," NBER Working Papers 13371, National Bureau of Economic Research, Inc.
  19. Marjit, Sugata & Kabiraj, Tarun & Dutta, Arijita, 2009. "Strategic Under-utilization of Patents and Entry Deterrence: The Case of Pharmaceutical Industry," MPRA Paper 19157, University Library of Munich, Germany.
  20. Darius Lakdawalla & Neeraj Sood, 2007. "The Welfare Effects of Public Drug Insurance," NBER Working Papers 13501, National Bureau of Economic Research, Inc.
  21. Darius Lakdawalla & Tomas Philipson & Y. Richard Wang, 2006. "Intellectual Property and Marketing," NBER Working Papers 12577, National Bureau of Economic Research, Inc.
  22. Zeckhauser, Richard, 1970. "Medical insurance: A case study of the tradeoff between risk spreading and appropriate incentives," Journal of Economic Theory, Elsevier, vol. 2(1), pages 10-26, March.
  23. Stiglitz, Joseph E, 1977. "Monopoly, Non-linear Pricing and Imperfect Information: The Insurance Market," Review of Economic Studies, Wiley Blackwell, vol. 44(3), pages 407-30, October.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:12681. 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: ()

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 references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link 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 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.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.