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Demand for pharmaceutical drugs: A choice modelling experiment

Author

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  • Anna Merino
Abstract
Despite the importance of supplier inducement and brand loyalty in the drug purchasing process, little empirical evidence is to be found with regard to the influence that these factors exert on patients’ decisions. Under the new scenario of easier access to information, patients are becoming more demanding and even go as far as questioning their physicians’ prescription. Furthermore, new regulation also encourages patients to adopt an active role in the decision between brand-name and generic drugs. Using a stated preference model based on a choice survey, I have found evidence of how significant physicians’ prescription and pharmacists’ recommendation become throughout the drug purchase process and, to what extent, brand loyalty influences the final decision. As far as we are aware, this paper is the first to explicitly take consumers’ preferences into account rather than focusing on the behavior of health professionals.

Suggested Citation

  • Anna Merino, 2003. "Demand for pharmaceutical drugs: A choice modelling experiment," Working Papers, Research Center on Health and Economics 704, Department of Economics and Business, Universitat Pompeu Fabra.
    • Handle: RePEc:upf:upfses:704
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    References listed on IDEAS

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    1. Sara Ellison Fisher & Iain Cockburn & Zvi Griliches & Jerry Hausman, 1997. "Characteristics of Demand for Pharmaceutical Products: An Examination of Four Cephalosporins," RAND Journal of Economics, The RAND Corporation, vol. 28(3), pages 426-446, Autumn.
    2. Hausman, Jerry A. & Ruud, Paul A., 1987. "Specifying and testing econometric models for rank-ordered data," Journal of Econometrics, Elsevier, vol. 34(1-2), pages 83-104.
    3. repec:bla:jecsur:v:15:y:2001:i:3:p:435-62 is not listed on IDEAS
    4. Dulleck, Uwe & Kerschbamer, Rudolf, 2001. "On Doctors, Mechanics and Computer Specialists. Or Where are the Problems with Credence Goods?," CEPR Discussion Papers 3016, C.E.P.R. Discussion Papers.
    5. Paul Ellickson & Scott Stern & Manuel Trajtenberg, 2001. "Patient Welfare and Patient Compliance -- An Empirical Framework for Measuring the Benefits from Pharmaceutical Innovation," NBER Chapters, in: Medical Care Output and Productivity, pages 539-564, National Bureau of Economic Research, Inc.
    6. repec:bla:jindec:v:48:y:2000:i:3:p:349-69 is not listed on IDEAS
    7. Judith K. Hellerstein, 1998. "The Importance of the Physician in the Generic Versus Trade-Name Prescription Decision," RAND Journal of Economics, The RAND Corporation, vol. 29(1), pages 108-136, Spring.
    8. Beggs, S. & Cardell, S. & Hausman, J., 1981. "Assessing the potential demand for electric cars," Journal of Econometrics, Elsevier, vol. 17(1), pages 1-19, September.
    9. Fredrik Carlsson & Peter Martinsson, 2003. "Design techniques for stated preference methods in health economics," Health Economics, John Wiley & Sons, Ltd., vol. 12(4), pages 281-294, April.
    10. Kerschbamer, Rudolf & Dulleck, Uwe, 2001. "On Doctors, Mechanics and Computer Specialists. Or Where are the Problems with Credence Goods?," CEPR Discussion Papers 3016, C.E.P.R. Discussion Papers.
    11. Armantier Olivier & Namoro Soiliou, 2006. "Prescription Drug Advertising and Patient Compliance: A Physician Agency Approach," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 6(1), pages 1-41, September.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Frank R. Lichtenberg, 2007. "Importation And Innovation," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 16(6), pages 403-417.
    2. Johanna Vásquez Velásquez & José Vicente Cadavid Herrera & Andrés Ramírez Hassan & Karoll Gómez Portilla, 2013. "Elasticidad de la demanda por medicamentos en el mercado farmacéutico privado en Colombia," Revista Ecos de Economía, Universidad EAFIT, June.
    3. Aida Isabel Tavares, 2017. "Generic substitution policy, an incentive approach," Computational and Mathematical Organization Theory, Springer, vol. 23(2), pages 199-220, June.
    4. Karolin Becker & Peter Zweifel, 2008. "Age and Choice in Health Insurance," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 1(1), pages 27-40, January.
    5. Karolin Becker & Peter Zweifel, 2005. "Cost Sharing in Health Insurance: An Instrument for Risk Selection?," SOI - Working Papers 0513, Socioeconomic Institute - University of Zurich.
    6. Harry Telser & Karolin Becker & Peter Zweifel, 2008. "Validity and Reliability of Willingness-to-Pay Estimates," The Patient: Patient-Centered Outcomes Research, Springer;International Academy of Health Preference Research, vol. 1(4), pages 283-298, October.
    7. Anna Merino, 2003. "Eliciting consumers preferences using stated preference discrete choice models: Contingent ranking versus choice experiment," Working Papers, Research Center on Health and Economics 705, Department of Economics and Business, Universitat Pompeu Fabra.
    8. Anna Merino, 2003. "Eliciting consumers preferences using stated preference discrete choice models: Contingent ranking versus choice experiment," Economics Working Papers 705, Department of Economics and Business, Universitat Pompeu Fabra.

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    More about this item

    Keywords

    Brand loyalty; demand inducement; drug price elasticity; discrete choice experiment;
    All these keywords.

    JEL classification:

    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
    • C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments

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