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Impact de la réforme de l’assurance maladie en Tunisie sur l’offre et la demande des médicaments


  • Joël, Marie-Eve
  • Boujelbene, Younès


  • Ayadi, Inès


This thesis proposes to determine the effect of the Health insurance reform in Tunisia on pharmaceutical demand and supply. For this purpose, we present the main characteristics of the Tunisian pharmaceutical market, with describing the objectives and modalities of implementation of Health insurance reform (Chapter 1). Then we demonstrate empirically the importance of generic competition (Chapter 2). Finally, we determine the impact of the Health insurance reform, specifically the introduction of reference price system on prices and market shares of four selected molecules (Chapter 3). It has information on prices and quantities of four selected molecules (eleven different presentations) from the third quarter 2002 to the fourth quarter 2008. In the first chapter, we specify the Tunisian Health care system, with explaining the characteristics of the pharmaceutical market. Then, we describe the Health insurance system, the reform objectives, particularly, on pharmaceuticals. And we define the reference price system and the modalities for its implementation. In the second chapter, we study the effect of the generic competition on prices and market shares. We find that the presence of generic products on the pharmaceutical market, offers the possibility to switch for the cheaper one. In addition, we find that the brand name price’s drop intensely than the average price of generic. Moreover, it seems that the decrease of the generic-to-brand price ratio entails an increase (decrease) in market share of generics (brand name’s drug). This increase in market share of generics is attributed to price changes. In addition, the empirical results suggest that the generic share depends on, and is influenced by, generic price. In addition, we find the number of generic entrants to be a key determinant of the level of generics’ share and generic-to-brand price ratio. In the third chapter, we examine the effect of the introduction of Reference pricing (RP) on price. It shows that the brand name’s price decline after the imposition of reform and the introduction of reference pricing, and generic competition plays an important role in this process. We find that the reference price system has a strong effect of reducing prices of pharmaceuticals under this regime; the effect is stronger for brand name than generic versions. This confirms that the RP encourages competition. The reference pricing system induces a change in the market for medicines to generic versions.

Suggested Citation

  • Ayadi, Inès, 2009. "Impact de la réforme de l’assurance maladie en Tunisie sur l’offre et la demande des médicaments," Economics Thesis from University Paris Dauphine, Paris Dauphine University, number 123456789/7671 edited by Joël, Marie-Eve & Boujelbene, Younès, April.
  • Handle: RePEc:dau:thesis:123456789/7671
    Note: dissertation

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    References listed on IDEAS

    1. Stephen Bond & Anke Hoeffler & Jonathan Temple, 2001. "GMM Estimation of Empirical Growth Models," Economics Papers 2001-W21, Economics Group, Nuffield College, University of Oxford.
    2. Ashenfelter, Orley C, 1978. "Estimating the Effect of Training Programs on Earnings," The Review of Economics and Statistics, MIT Press, vol. 60(1), pages 47-57, February.
    3. Mats A. Bergman & Niklas Rudholm, 2003. "The Relative Importance of Actual and Potential Competition: Empirical Evidence From the Pharmaceuticals Market," Journal of Industrial Economics, Wiley Blackwell, vol. 51(4), pages 455-467, December.
    4. Brekke, Kurt R. & Grasdal, Astrid L. & Holms, Tor Helge, 2009. "Regulation and pricing of pharmaceuticals: Reference pricing or price cap regulation?," European Economic Review, Elsevier, vol. 53(2), pages 170-185, February.
    5. Thomas Aronsson & Mats Bergman & Niklas Rudholm, 2001. "The Impact of Generic Drug Competition on Brand Name Market Shares – Evidence from Micro Data," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 19(4), pages 423-433, December.
    6. Stephen Bond & Anke Hoeffler, 2001. "GMM Estimation of Empirical Growth Models," Economics Series Working Papers 2001-W21, University of Oxford, Department of Economics.
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    More about this item


    effect on market share; effect on prices; panel data; Reference pricing system; Health Insurance Reform; generic competition; Pharmaceutical market in Tunisia; part de marché; prix; données de panel; système de prix de référence; versions génériques; médicament princeps; Marché des médicaments en Tunisie;

    JEL classification:

    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
    • I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
    • L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology; Plastics
    • D4 - Microeconomics - - Market Structure, Pricing, and Design


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