IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this paper or follow this series

Consumer Inertia and Firm Pricing in the Medicare Part D Prescription Drug Insurance Exchange

  • Keith M. Marzilli Ericson

I use the Medicare Part D prescription drug insurance market to examine the dynamics of firm interaction with consumers on an insurance exchange. Enrollment data show that consumers face switching frictions leading to inertia in plan choice, and a regression discontinuity design indicates initial defaults have persistent effects. In the absence of commitment to future prices, theory predicts firms respond to inertia by raising prices on existing enrollees, while introducing cheaper alternative plans. The complete set of enrollment and price data from 2006 through 2010 confirms this prediction: older plans have approximately 10% higher premiums than comparable new plans.

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: http://www.nber.org/papers/w18359.pdf
Download Restriction: Access to the full text is generally limited to series subscribers, however if the top level domain of the client browser is in a developing country or transition economy free access is provided. More information about subscriptions and free access is available at http://www.nber.org/wwphelp.html. Free access is also available to older working papers.

As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 18359.

as
in new window

Length:
Date of creation: Sep 2012
Date of revision:
Publication status: published as Keith M. Marzilli Ericson, 2014. "Consumer Inertia and Firm Pricing in the Medicare Part D Prescription Drug Insurance Exchange," American Economic Journal: Economic Policy, American Economic Association, vol. 6(1), pages 38-64, February.
Handle: RePEc:nbr:nberwo:18359
Note: AG HC PE
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: http://www.nber.org
Email:


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. Wesley Yin & Darius Lakdawalla, 2011. "Insurers’ Negotiating Leverage and the External Effects of Medicare Part D," Boston University - Department of Economics - Working Papers Series WP2011-065, Boston University - Department of Economics.
  2. Jeffrey R. Kling & Sendhil Mullainathan & Eldar Shafir & Lee C. Vermeulen & Marian V. Wrobel, 2012. "Comparison Friction: Experimental Evidence from Medicare Drug Plans," The Quarterly Journal of Economics, Oxford University Press, vol. 127(1), pages 199-235.
  3. Keith M. Marzilli Ericson, 2011. "Forgetting We Forget: Overconfidence And Memory," Journal of the European Economic Association, European Economic Association, vol. 9(1), pages 43-60, 02.
  4. Mark Duggan & Patrick Healy & Fiona Scott Morton, 2008. "Providing Prescription Drug Coverage to the Elderly: America's Experiment with Medicare Part D," Journal of Economic Perspectives, American Economic Association, vol. 22(4), pages 69-92, Fall.
  5. Taylor, Curtis R., 2000. "Supplier Surfing: Competition and Consumer Behavior in Subscription Markets," Working Papers 00-12, Duke University, Department of Economics.
  6. Chetty, Nadarajan, 2012. "Bounds on Elasticities With Optimization Frictions: A Synthesis of Micro and Macro Evidence on Labor Supply," Scholarly Articles 9748524, Harvard University Department of Economics.
  7. Farrell, Joseph & Shapiro, Carl, 1988. "Dynamic Competition with Switching Costs," Department of Economics, Working Paper Series qt1h02g9q4, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  8. Brigitte C. Madrian & Dennis F. Shea, 2001. "THE POWER OF SUGGESTION: INERTIA IN 401(k) PARTICIPATION AND SAVINGS BEHAVIOR," The Quarterly Journal of Economics, MIT Press, vol. 116(4), pages 1149-1187, November.
  9. Strombom, Bruce A. & Buchmueller, Thomas C. & Feldstein, Paul J., 2002. "Switching costs, price sensitivity and health plan choice," Journal of Health Economics, Elsevier, vol. 21(1), pages 89-116, January.
  10. Samuelson, William & Zeckhauser, Richard, 1988. " Status Quo Bias in Decision Making," Journal of Risk and Uncertainty, Springer, vol. 1(1), pages 7-59, March.
  11. McCrary, Justin, 2008. "Manipulation of the running variable in the regression discontinuity design: A density test," Journal of Econometrics, Elsevier, vol. 142(2), pages 698-714, February.
  12. Francesco Decarolis, 2012. "Pricing and Incentives in Publicly Subsidized Health Care Markets: the Case of Medicare Part D," PIER Working Paper Archive 12-026, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  13. Florian Heiss & Daniel McFadden & Joachim Winter, 2010. "Mind the Gap! Consumer Perceptions and Choices of Medicare Part D Prescription Drug Plans," NBER Chapters, in: Research Findings in the Economics of Aging, pages 413-481 National Bureau of Economic Research, Inc.
  14. Raj Chetty & John N. Friedman & Tore Olsen & Luigi Pistaferri, 2009. "Adjustment Costs, Firm Responses, and Micro vs. Macro Labor Supply Elasticities: Evidence from Danish Tax Records," NBER Working Papers 15617, National Bureau of Economic Research, Inc.
  15. Farrell, Joseph, 1986. "A note on inertia in market share," Economics Letters, Elsevier, vol. 21(1), pages 73-75.
  16. Gruber, Jonathan & Washington, Ebonya, 2005. "Subsidies to employee health insurance premiums and the health insurance market," Journal of Health Economics, Elsevier, vol. 24(2), pages 253-276, March.
  17. Jason Abaluck & Jonathan Gruber, 2011. "Choice Inconsistencies among the Elderly: Evidence from Plan Choice in the Medicare Part D Program," American Economic Review, American Economic Association, vol. 101(4), pages 1180-1210, June.
  18. Mark G. Duggan & Fiona Scott Morton, 2011. "The Medium-Term Impact of Medicare Part D on Pharmaceutical Prices," American Economic Review, American Economic Association, vol. 101(3), pages 387-92, May.
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:18359. 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.