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Innovation and the Nordic Erythropoietin Market


  • Enrico Sorisio

    (PharmaNess scarl, Center of Technology, Innovation and Culture (TIK), University of Oslo)

  • Steinar STRØM

    () (University of Oslo)


We have estimated the demand for erythropoietin (EPO) using market data from the Scandinavian countries. Assuming that prices are set in a Nash-Bertrand game we determine the degree of competition in this Scandinavian market. We also report on the impact of product innovation on welfare, e.g on consumer (buyer) and producer surplus. The product innovation is the entry of Aranesp onto the Scandinavian market. We find a positive effect in the EPO market related to the introduction of Aranesp. However, the notable increase in expected consumer surplus does not seem to be accompanied by a corresponding increase in expected producer surplus. Some time after the introduction of the innovation, the total surplus does not seem to increase, remaining more or less constant. An important conclusion is that although there are few firms competing in the Scandinavian EPO market, the estimated long-run market power is rather low.

Suggested Citation

  • Enrico Sorisio & Steinar STRØM, 2008. "Innovation and the Nordic Erythropoietin Market," Rivista Internazionale di Scienze Sociali, Vita e Pensiero, Pubblicazioni dell'Universita' Cattolica del Sacro Cuore, vol. 116(1), pages 99-126.
  • Handle: RePEc:vep:journl:y:2008:v:116:i:1:p:99-126

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    Cited by:

    1. Dalen, Dag Morten & Sorisio, Enrico & Strøm, Steinar, 2009. "Choosing among Competing Blockbusters: Does the Identity of the Third-party Payer Matter for Prescribing Doctors?," Memorandum 10/2009, Oslo University, Department of Economics.

    More about this item


    discrete choice; demand for pharmaceuticals; monopolistic competition; crythropoiethin; EPO;

    JEL classification:

    • C35 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms


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