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TRIPs and patenting activity: Evidence from the Indian pharmaceutical industry

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  • Chadha, Alka
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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 2Â years between R&D spending and patent applications.

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    Bibliographic Info

    Article provided by Elsevier in its journal Economic Modelling.

    Volume (Year): 26 (2009)
    Issue (Month): 2 (March)
    Pages: 499-505

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    Handle: RePEc:eee:ecmode:v:26:y:2009:i:2:p:499-505

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    Web page: http://www.elsevier.com/locate/inca/30411

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    Keywords: Patents Pharmaceuticals;

    References

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    1. Marco Alfò & Giovanni Trovato, 2004. "Semiparametric mixture models for multivariate count data, with application," Econometrics Journal, Royal Economic Society, vol. 7(2), pages 426-454, December.
    2. Gourieroux, Christian & Monfort, Alain & Trognon, Alain, 1984. "Pseudo Maximum Likelihood Methods: Applications to Poisson Models," Econometrica, Econometric Society, vol. 52(3), pages 701-20, May.
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    4. Kortum, Samuel & Lerner, Josh, 1998. "Stronger protection or technological revolution: what is behind the recent surge in patenting?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 48(1), pages 247-304, June.
    5. Sunil Kanwar & Robert E Evanson, 2004. "Does Intellectual Property Protection Spur Technological Change?," Levine's Working Paper Archive 122247000000000455, David K. Levine.
    6. Klemperer, Paul, 1990. "How Broad Should the Scope of Patent Protection Be?," CEPR Discussion Papers 392, C.E.P.R. Discussion Papers.
    7. Richard C. Levin & Alvin K. Klevorick & Richard R. Nelson & Sidney G. Winter, 1987. "Appropriating the Returns from Industrial Research and Development," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 18(3), pages 783-832.
    8. Richard Blundell & Rachel Griffith & Frank Windmeijer, 1999. "Individual effects and dynamics in count data models," IFS Working Papers W99/03, Institute for Fiscal Studies.
    9. Fink, Carsten, 2000. "How stronger patent protection in India might affect the behavior of transnational pharaceutical industries," Policy Research Working Paper Series 2352, The World Bank.
    10. Edwin Mansfield, 1986. "Patents and Innovation: An Empirical Study," Management Science, INFORMS, vol. 32(2), pages 173-181, February.
    11. Henderson, Rebecca. & Cockburn, Iain., 1994. "Measuring competence? : exploring firm effects in pharmaceutical research," Working papers 3712-94., Massachusetts Institute of Technology (MIT), Sloan School of Management.
    12. Rabe-Hesketh, Sophia & Skrondal, Anders & Pickles, Andrew, 2005. "Maximum likelihood estimation of limited and discrete dependent variable models with nested random effects," Journal of Econometrics, Elsevier, vol. 128(2), pages 301-323, October.
    13. Petra Moser, 2005. "How Do Patent Laws Influence Innovation? Evidence from Nineteenth-Century World's Fairs," American Economic Review, American Economic Association, vol. 95(4), pages 1214-1236, September.
    14. Deolalikar, Anil B & Evenson, Robert E, 1989. "Technology Production and Technology Purchase in Indian Industry: An Econometric Analysis," The Review of Economics and Statistics, MIT Press, vol. 71(4), pages 689-92, November.
    15. Sakakibara, Mariko & Branstetter, Lee, 2001. "Do Stronger Patents Induce More Innovation? Evidence from the 1988 Japanese Patent Law Reforms," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 77-100, Spring.
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    Cited by:
    1. Guennif, Samira & Ramani, Shyama V., 2012. "Explaining divergence in catching-up in pharma between India and Brazil using the NSI framework," Research Policy, Elsevier, vol. 41(2), pages 430-441.
    2. Chadha, Alka, 2009. "Product Cycles, Innovation, and Exports: A Study of Indian Pharmaceuticals," World Development, Elsevier, vol. 37(9), pages 1478-1483, September.

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