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Trips and Patenting Activity: Evidence from the Indian Pharmaceutical Industry

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  • Alka Chadha

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    (Department of Economics, National University of Singapore)

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    Abstract

    This paper studies the impact of the strict patent regime on the patenting activity of Indian pharmaceutical firms and finds that patenting activity of these firms has increased after the signing of TRIPs. The study is conducted for 65 pharmaceutical firms for the period 1991 to 2004 using different parametric and semiparametric count panel data models. Results across different count data models indicate a positive and significant impact of the introduction of stronger patents on patenting activity. Further, the results show a gestation lag of two years between R&D spending and patent applications.

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    File URL: http://www.fas.nus.edu.sg/ecs/pub/wp/wp0512.pdf
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    Bibliographic Info

    Paper provided by National University of Singapore, Department of Economics in its series Departmental Working Papers with number wp0512.

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    Date of creation: 2005
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    Handle: RePEc:nus:nusewp:wp0512

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    Web page: http://www.fas.nus.edu.sg/ecs/index.html
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    Keywords: Pharmaceuticals; Patents;

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