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Generic Substitution

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Author Info
Furu, Kari (Ragnar Frisch Centre for Economic Research)
Dalen, Dag Morten (Ragnar Frisch Centre for Economic Research)
Locatelli, Marilena (University of Turin)
Strøm, Steinar () (University of Turin)

Additional information is available for the following registered author(s):

Abstract

We examine the importance of prices, doctor and patient characteristics, and market institutions for the likelihood of choosing generic drugs instead of the more expensive original brand-name version. Using an extensive dataset extracted from The Norwegian Prescription Database (NorPD) containing all prescriptions written in March 2004 and 2006 on 23 different drugs (chemical substances) in Norway, we find strong evidence for the importance of both doctor and patient characteristics for the choice probabilities. The price difference between brand and generic versions and insurance coverage both affect generic substitution. Moreover, controlling for the retail chain affiliation of the dispensing pharmacy, we find that pharmacies play an important role for patients’ willingness to substitute. In markets with more recent entry of generic drugs, the brand-name loyalty proves to be much stronger, giving less explanatory power to our demand model.

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File URL: http://www.oekonomi.uio.no/memo/2008/pdf_filer/Memo-11-2008.pdf
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Publisher Info
Paper provided by Oslo University, Department of Economics in its series Memorandum with number 11/2008.

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Length: 25 pages
Date of creation: 17 Jun 2008
Date of revision:
Handle: RePEc:hhs:osloec:2008_011

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Postal: Department of Economics, University of Oslo, P.O Box 1095 Blindern, N-0317 Oslo, Norway
Phone: 22 85 51 27
Fax: 22 85 50 35
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Web page: http://www.oekonomi.uio.no/indexe.html
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Related research
Keywords: Generics; substitution; microdata; random utility model;

Find related papers by JEL classification:
C35 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Discrete Regression and Qualitative Choice Models
I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology

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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.:
  1. 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. [Downloadable!] (restricted)
  2. Richard G. Frank & David S. Salkever, 1997. "Generic Entry and the Pricing of Pharmaceuticals," NBER Working Papers 5306, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  3. Coscelli, Andrea, 2000. "The Importance of Doctors' and Patients' Preferences in the Prescription Decision," Journal of Industrial Economics, Blackwell Publishing, vol. 48(3), pages 349-69, September. [Downloadable!] (restricted)
  4. Ernst R. Berndt, 2002. "Pharmaceuticals in U.S. Health Care: Determinants of Quantity and Price," Journal of Economic Perspectives, American Economic Association, vol. 16(4), pages 45-66, Fall. [Downloadable!] (restricted)
  5. Richard G. Frank & David S. Salkever, 1997. "Generic Entry and the Pricing of Pharmaceuticals," Journal of Economics & Management Strategy, Blackwell Publishing, vol. 6(1), pages 75-90, 03. [Downloadable!] (restricted)
  6. Grabowski, Henry G & Vernon, John M, 1992. "Brand Loyalty, Entry, and Price Competition in Pharmaceuticals after the 1984 Drug Act," Journal of Law & Economics, University of Chicago Press, vol. 35(2), pages 331-50, October.
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This page was last updated on 2009-11-26.


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