This paper analyses the impact of patents on the dynamics of new drug introduction into different national markets. By studying a set of markets for HIV/AIDS drugs in a sample of developing countries, we find that patents only make the introduction of new drugs significantly quicker in the case of drugs that have already been in the global market for at least 1 to 4 years. Patents deter the entry of local copies into the markets of drugs launched by big multinational firms, and the lack of competition makes introductory prices to be larger and offers multinationals larger revenues in the marketing of new drugs during the patent term. However, incentives to launch new products under patents across countries appear to work with some delay.
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Paper provided by Universitat de Barcelona. Espai de Recerca en Economia in its series Working Papers in Economics with number
122.
Length: 22 pages Date of creation: 2004 Date of revision: Handle: RePEc:bar:bedcje:2004122
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Find related papers by JEL classification: L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology K11 - Law and Economics - - Basic Areas of Law - - - Property Law O34 - Economic Development, Technological Change, and Growth - - Technological Change - - - Intellectual Property Rights
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