Trips and Patenting Activity: Evidence from the Indian Pharmaceutical Industry

Alka Chadha ()
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Alka Chadha: Department of Economics, National University of Singapore

Departmental Working Papers from National University of Singapore, Department of Economics

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.

Keywords: Pharmaceuticals; Patents (search for similar items in EconPapers)
JEL-codes: L65 O31 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cwa, nep-hea, nep-ino and nep-tid
Date: 2005
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Persistent link: http://EconPapers.repec.org/RePEc:nus:nusewp:wp0512

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