Credence goods and market power: an econometric study on the Brazilian pharmaceutical industry

Authors

  • Eduardo P. S. Fiuza Fundação Getúlio Vargas. Escola de Pós-Graduação em Economia
  • Marcos de B. Lisboa Fundação Getúlio Vargas. Escola de Pós-Graduação em Economia

DOI:

https://doi.org/10.1590/S0101-41612003000400001

Keywords:

generic drugs, pharmaceutical industry, credence goods

Abstract

Bearing in mind the market failures pointed out by the economic literature and following the international empirical evidence, and based on original micro data of the Brazilian pharmaceutical industry in the late 1990s, this article attempts to relate empirically drug prices in Brazil to some explaining variables. We find that, similarly to previous U.S. estimations, leading branded drugs accommodated share growth of the followers, turning towards a more inelastic market segment and raising their prices. On followers, in turn, a fall of the concentration index in a market had ambiguous effects: if due to reduced leader power, followers raised their relative prices; if due to a tougher competition within the fringe, their relative prices tended to go down.

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References

ANDRADE, M.; LISBOA, M. Regulação do setor saúde no Brasil. Rio de Janeiro: EPGE/FGV, 2001. Mimeografado.

BALTAGI, Badi H. Simultaneous equations with error components. Journal of Econometrics, n. 17, p. 189-200, 1981.

BERNDT, Ernst; PINDYCK, Robert; AZOULAY, Pierre. Consumption externalities and diffusion in pharmaceutical markets: antiulcer drugs. Cambridge, Mass.: NBER, 2000. (Working Paper; 7772).

CAVES, Richard E.; WHINSTON, Michael D.; HURWITZ, Mark A. Patent expiration, entry and competition in the U.S. pharmaceutical industry. Brookings Papers on Economic Activity, 1991. Special issue.

DARBY, Michael; KARNI, Edi. Free Competition and the Optimal Amount of Fraud. Journal of Law and Economics, n. 16, p. 67-88, 1973.

DI MASI, A. et al. Cost of innovation in the pharmaceutical industry. Journal of Health Economics, v. 10, n. 2, p. 107-142, 1991.

FAGAN, Perry L. As gigantes farmacêuticas: prontas para o século XXI?. Cambridge, Mass.: Harvard Business School, 1998. Note 9-698-070.

FRANK, Richard; SALKEVER, David. Pricing, patent loss and the market for pharmaceuticals. Cambridge, Mass.: NBER, 1991. (Working Paper; 3803).

FRANK, Richard; SALKEVER, David. Generic entry and the pricing of pharmaceuticals. Cambridge, Mass.: NBER, 1995. (Working Paper; 5306).

GRABOWSKI, Henry G.; VERNON, John M. Brand loyalty, entry, and price competition in pharmaceuticals after the 1984 Drug Act. Journal of Law and Economics, v. 35, n. 2, p. 331-350, 1992.

HAUSMAN, J. A. Specification tests in econometrics. Econometrica, v. 46, n. 6, p. 1251-71, 1978.

HELLERSTEIN, Judith. The demand for post-patent prescription pharmaceuticals. Cambridge, Mass.: NBER, 1994. (Working Paper; 4981).

HURWITZ, Mark; CAVES, Richard. Persuasion or information? Promotion and the shares of brand name and generic pharmaceuticals. Journal of Law & Economics, v. 31, n. 2, p. 299-320, 1988.

LEFFLER, Keith. Persuasion or information? The economics of prescription drug advertising. Journal of Law and Economics, v. 24, n. 1, p. 5-74, 1981.

LEVIN, Richard; KLEVORICK, Alvin; NELSON, Richard; WINTER, Sidney. Appropriating the returns from industrial research and development. Brookings Papers on Economic Activity, v. 3, n. 0, p. 783-820, 1987.

LICHTENBERG, Frank R. Do (more and better) drugs keep people out of hospitals? American Economic Review, v. 86, n. 2, p. 384-388, 1996a.

LICHTENBERG, Frank R. The effect of pharmaceutical utilization and innovation on hospitalization and mortality. Cambridge, Mass.: NBER, 1996b. (Working Paper; 5418).

LICHTENBERG, Frank R. Pharmaceutical innovation, mortality reduction and economic growth.

Cambridge, Mass.: NBER, 1998. (Working Paper; 6569).

LICHTENBERG, Frank R. The benefits and costs of new drugs: evidence from the 1996 Medical

Expenditure Panel Survey. Cambridge, Mass.: NBER, 2001. (Working Paper; 8147).

LISBOA, Marcos B.;MOREIRA, Humberto. On capitation contracts and endogenous altruism: the managed care. Rio de Janeiro, 2000. Mimeografado.

LOYOLA, Maria Andréa. Médicos e curandeiros: conflito social e saúde. São Paulo: DIFEL, 1984.

MANSFIELD, Edwin. Patents and innovation: an empirical study. Management Science, v. 32, n. 2, p. 173-181, 1986.

NELSON, Phillip. Information and consumer behavior. Journal of Political Economy, n. 78, p. 311-329, 1970.

NOGUÉS, Júlio. Patents and pharmaceutical drugs: understanding the pressures on developing countries. Washington (D.C.): World Bank, 1990. (International Economics Department Working Paper Series; 502).

PELTZMAN, Sam. An evaluation of consumer protection legislation: the 1962 drug amendments. Journal of Political Economy, v. 81, n. 5, p. 1049-91, 1973.

PEPE, Vera L. E.; VERAS, Cláudia M. T. A prescrição médica. Instituto de Medicina Social - UERJ, 1995. (Série Estudos em Saúde Coletiva, 111).

PhRMA - PHARMACEUTICAL RESEARCHERS’ AND MANUFACTURERS’ ASSOCIATION. Pharmaceutical industry profile 2000, 2000. Downloadable from:

http://www.phrma.org

QUEIROZ, Sérgio; GONZÁLEZ, Alexis. Mudanças recentes na estrutura produtiva da indústria farmacêutica. In: NEGRI, Barjas; DI GIOVANNI, Geraldo (eds.), Brasil: radiografia da saúde. Campinas, SP: IE-UNICAMP, 2001.

RÊGO, Elba C.L. Políticas de regulação do mercado de medicamentos: a experiência internacional. Revista do BNDES, v. 7, n. 14, p. 367-400, 2000.

RUPPRECHT, Fréderic.Le marché du médicament: évolutions depuis

In: MOUGEOT, M. (org.), Régulation du systeme de santé. Paris: La Documentation Française, 1999.

SAKAKIBARA, Mariko; BRANSTETTER, Lee. Do stronger patents induce more innovation? Evidence from the 1988 Japanese patent law reforms. Rand Journal of Economics, v. 32, n. 1, p. 77-100, 2001.

SILVA, Ricardo I. Indústria farmacêutica brasileira: estrutura e a questão dos preços de transferência. 1999. Unpublished Doctoral Dissertation - Escola de Quimica. UFRJ.

TEMIN, Peter. Taking your medicine: drug regulation in the United States. Cambridge, Mass.: Harvard University Press, 1980.

TIROLE, Jean. The theory of industrial organization. Cambridge, Mass.: MIT Press, 1988.

VISCUSI, W. Kip; VERNON, John; HARRINGTON, JR., Joseph E. Economic of regulation and antitrust. 2nd ed. Cambrige, Mass.: MIT Press, 1995.

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Published

01-12-2003

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How to Cite

Fiuza, E. P. S., & Lisboa, M. de B. (2003). Credence goods and market power: an econometric study on the Brazilian pharmaceutical industry. Estudos Econômicos (São Paulo), 33(4), 601-638. https://doi.org/10.1590/S0101-41612003000400001