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Comportements sexuels risqués et incitations. L'impact des nouveaux traitements sur la prévention du vih


  • Pierre-Yves Geoffard
  • Stéphane Méchoulan


This article studies the interaction between two individual decisions in the context of sexually transmitted diseases: on the one hand, the choice of risk level, on the other hand, the decision to get tested. Our angle here is economic epidemiology, which aims at identifying the essential arbitrages that involve private decisions. Since testing opens access to treatments for a disease, it reduces the private cost of risk taking, all the more so when available treatments are more efficacious. From this, it stems that improvements in treatments can spur an increase in the risk level, by diminishing the cost associated with risk for those individuals who have opted for testing. An empirical analysis based on data from the San Francisco Stop Aids Project confirms this theoretical prediction. The apparition, during the year 1996, of new treatments against hiv coincided with an increase in risky behavior within the tested population (test group) but not within the population that had not undertaken testing (control group). Classification JEL : I180, I190

Suggested Citation

  • Pierre-Yves Geoffard & Stéphane Méchoulan, 2004. "Comportements sexuels risqués et incitations. L'impact des nouveaux traitements sur la prévention du vih," Revue économique, Presses de Sciences-Po, vol. 55(5), pages 883-899.
  • Handle: RePEc:cai:recosp:reco_555_0883

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    References listed on IDEAS

    1. Bernardo Bortolotti & Domenico Siniscalco & Marcella Fantini, 2000. "Privatisation and Institutions: A Cross Country Analysis," CESifo Working Paper Series 375, CESifo Group Munich.
    2. Jones, Steven L. & Megginson, William L. & Nash, Robert C. & Netter, Jeffry M., 1999. "Share issue privatizations as financial means to political and economic ends," Journal of Financial Economics, Elsevier, vol. 53(2), pages 217-253, August.
    3. Gérard Charreaux, 1997. "L'entreprise publique est-elle nécessairement moins efficace?," Working Papers CREGO 0970901, Université de Bourgogne - CREGO EA7317 Centre de recherches en gestion des organisations.
    4. Villalonga, Belen, 2000. "Privatization and efficiency: differentiating ownership effects from political, organizational, and dynamic effects," Journal of Economic Behavior & Organization, Elsevier, vol. 42(1), pages 43-74, May.
    5. Ehrlich, Isaac & Georges Gallais-Hamonno & Zhiqiang Liu & Randall Lutter, 1994. "Productivity Growth and Firm Ownership: An Analytical and Empirical Investigation," Journal of Political Economy, University of Chicago Press, vol. 102(5), pages 1006-1038, October.
    6. Megginson, William L & Nash, Robert C & van Randenborgh, Matthias, 1994. " The Financial and Operating Performance of Newly Privatized Firms: An International Empirical Analysis," Journal of Finance, American Finance Association, vol. 49(2), pages 403-452, June.
    7. Jeffry M. Netter & William L. Megginson, 2001. "From State to Market: A Survey of Empirical Studies on Privatization," Journal of Economic Literature, American Economic Association, vol. 39(2), pages 321-389, June.
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    Cited by:

    1. Véronique Flambard & Nicolas Vaillant & François-Charles Wolff, 2011. "Dating as Leisure," Chapters,in: Handbook on the Economics of Leisure, chapter 9 Edward Elgar Publishing.

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    JEL classification:

    • I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
    • I19 - Health, Education, and Welfare - - Health - - - Other


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