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

Does Price Reveal Poor-Quality Drugs? Evidence from 17 Countries

  • Roger Bate
  • Ginger Zhe Jin
  • Aparna Mathur

Focusing on 8 drug types on the WHO-approved medicine list, we constructed an original dataset of 899 drug samples from 17 low- and median-income countries and tested them for visual appearance, disintegration, and analyzed their ingredients by chromatography and spectrometry. Fifteen percent of the samples fail at least one test and can be considered substandard. After controlling for local factors, we find that failing drugs are priced 13.6-18.7% lower than non-failing drugs but the signaling effect of price is far from complete, especially for non-innovator brands. The look of the pharmacy, as assessed by our covert shoppers, is weakly correlated with the results of quality tests. These findings suggest that consumers are likely to suspect low quality from market price, non-innovator brand and the look of the pharmacy, but none of these signals can perfectly identify substandard and counterfeit drugs. Indeed, many cheaper non-innovator products pass all quality tests, and are genuine generic drugs.

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/w16854.pdf
Download Restriction: no

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 16854.

as
in new window

Length:
Date of creation: Mar 2011
Date of revision:
Publication status: Published in the Journal of Health Economics 30 (2011) 1150-1163
Handle: RePEc:nbr:nberwo:16854
Note: 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: 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. Grossman, Gene, 1986. "Counterfeit Product Trade," CEPR Discussion Papers 103, C.E.P.R. Discussion Papers.
  2. Lanjouw, Jean O. & Cockburn, Iain M., 2001. "New Pills for Poor People? Empirical Evidence after GATT," World Development, Elsevier, vol. 29(2), pages 265-289, February.
  3. Yi Qian, 2008. "Impacts of Entry by Counterfeiters," The Quarterly Journal of Economics, MIT Press, vol. 123(4), pages 1577-1609, November.
  4. George J. Stigler, 1961. "The Economics of Information," Journal of Political Economy, University of Chicago Press, vol. 69, pages 213.
  5. Carl Shapiro, 1982. "Consumer Information, Product Quality, and Seller Reputation," Bell Journal of Economics, The RAND Corporation, vol. 13(1), pages 20-35, Spring.
  6. Danzon, Patricia M. & Chao, Li-Wei, 2000. "Cross-national price differences for pharmaceuticals: how large, and why?," Journal of Health Economics, Elsevier, vol. 19(2), pages 159-195, March.
  7. Anis, Aslam H. & Wen, Quan, 1998. "Price regulation of pharmaceuticals in Canada," Journal of Health Economics, Elsevier, vol. 17(1), pages 21-38, January.
  8. Klein, Benjamin & Leffler, Keith B, 1981. "The Role of Market Forces in Assuring Contractual Performance," Journal of Political Economy, University of Chicago Press, vol. 89(4), pages 615-41, August.
  9. Wolinsky, Asher, 1983. "Prices as Signals of Product Quality," Review of Economic Studies, Wiley Blackwell, vol. 50(4), pages 647-58, October.
  10. Cooper, Russell & Ross, Thomas W, 1984. "Prices, Product Qualities and Asymmetric Information: The Competitive Case," Review of Economic Studies, Wiley Blackwell, vol. 51(2), pages 197-207, April.
  11. John Rizzo & Richard Zeckhauser, 2009. "Generic script share and the price of brand-name drugs: the role of consumer choice," International Journal of Health Care Finance and Economics, Springer, vol. 9(3), pages 291-316, September.
  12. Ginger Zhe Jin & Andrew Kato, 2006. "Price, quality, and reputation: evidence from an online field experiment," RAND Journal of Economics, RAND Corporation, vol. 37(4), pages 983-1005, December.
  13. Danzon, Patricia M & Chao, Li-Wei, 2000. "Does Regulation Drive out Competition in Pharmaceutical Markets?," Journal of Law and Economics, University of Chicago Press, vol. 43(2), pages 311-57, October.
  14. Grossman, Gene M & Shapiro, Carl, 1988. "Foreign Counterfeiting of Status Goods," The Quarterly Journal of Economics, MIT Press, vol. 103(1), pages 79-100, February.
  15. Richard G. Frank & David S. Salkever, 1995. "Generic Entry and the Pricing of Pharmaceuticals," NBER Working Papers 5306, National Bureau of Economic Research, Inc.
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:16854. 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.