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The Impact of Patenting on New Product Introductions in the Pharmaceutical Industry

  • Stuart, Graham
  • Higgins, Matthew

Since Comanor and Scherer (1969), researchers have been using patents as a proxy for new product development. In this paper, we reevaluate this relationship by using novel new data. We demonstrate that the relationship between patenting and new FDA-approved product introductions has diminished considerably since the 1950s, and in fact no longer holds. Moreover, we also find that the relationship between R&D expenditures and new product introductions is considerably smaller than previously reported. While measures of patenting remain important in predicting the arrival of product introductions, the most important predictor is the loss of exclusivity protection on a current product. Our evidence suggests that pharmaceutical firms are acting strategically with respect to new product introductions. Finally, we find no relationship between firm size and new product introductions.

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File URL: https://mpra.ub.uni-muenchen.de/4574/1/MPRA_paper_4574.pdf
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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 4574.

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Date of creation: 08 Aug 2007
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Handle: RePEc:pra:mprapa:4574
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  1. Iain Cockburn & Zvi Griliches, 1987. "Industry Effects and Appropriability Measures in the Stock Markets Valuation of R&D and Patents," NBER Working Papers 2465, National Bureau of Economic Research, Inc.
  2. Matthew Higgins & Daniel Rodriguez, 2003. "The Outsourcing of R&D through Acquisitions in the Pharmaceutical Industry," Emory Economics 0324, Department of Economics, Emory University (Atlanta).
  3. Adam B. Jaffe, 1986. "Technological Opportunity and Spillovers of R&D: Evidence from Firms' Patents, Profits and Market Value," NBER Working Papers 1815, National Bureau of Economic Research, Inc.
  4. Bronwyn H. Hall & Adam B. Jaffe & Manuel Trajtenberg, 2001. "The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools," NBER Working Papers 8498, National Bureau of Economic Research, Inc.
  5. Hagedoorn, John & Cloodt, Myriam, 2003. "Measuring innovative performance: is there an advantage in using multiple indicators?," Research Policy, Elsevier, vol. 32(8), pages 1365-1379, September.
  6. Levine, Ross & Renelt, David, 1992. "A Sensitivity Analysis of Cross-Country Growth Regressions," American Economic Review, American Economic Association, vol. 82(4), pages 942-63, September.
  7. Bronwyn H. Hall, 2004. "Exploring the Patent Explosion," NBER Working Papers 10605, National Bureau of Economic Research, Inc.
  8. Hausman, Jerry, 2015. "Specification tests in econometrics," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 38(2), pages 112-134.
  9. Comanor, William S & Scherer, Frederic M, 1969. "Patent Statistics as a Measure of Technical Change," Journal of Political Economy, University of Chicago Press, vol. 77(3), pages 392-98, May/June.
  10. Nicholas Bloom & John Van Reenen, 2002. "Patents, Real Options and Firm Performance," Economic Journal, Royal Economic Society, vol. 112(478), pages C97-C116, March.
  11. Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 287-343 National Bureau of Economic Research, Inc.
  12. Schmookler, Jacob, 1962. "Economic Sources of Inventive Activity," The Journal of Economic History, Cambridge University Press, vol. 22(01), pages 1-20, March.
  13. Henrik Bresman & Julian Birkinshaw & Robert Nobel, 1999. "Knowledge Transfer in International Acquisitions," Journal of International Business Studies, Palgrave Macmillan, vol. 30(3), pages 439-462, September.
  14. Chris Freeman & Luc Soete, 1997. "The Economics of Industrial Innovation, 3rd Edition," MIT Press Books, The MIT Press, edition 3, volume 1, number 0262061953, June.
  15. 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.
  16. Phillip B. Levine & David J. Zimmerman, 2000. "Children's Welfare Exposure and Subsequent Development," JCPR Working Papers 130, Northwestern University/University of Chicago Joint Center for Poverty Research.
  17. Jensen, Elizabeth J, 1987. "Research Expenditures and the Discovery of New Drugs," Journal of Industrial Economics, Wiley Blackwell, vol. 36(1), pages 83-95, September.
  18. 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.
  19. Aspden, H., 1983. "Patent statistics as a measure of technological vitality," World Patent Information, Elsevier, vol. 5(3), pages 170-173.
  20. repec:fth:harver:1473 is not listed on IDEAS
  21. Ernst, Holger, 2001. "Patent applications and subsequent changes of performance: evidence from time-series cross-section analyses on the firm level," Research Policy, Elsevier, vol. 30(1), pages 143-157, January.
  22. Harhoff, Dietmar & Scherer, Frederic M. & Vopel, Katrin, 2003. "Citations, family size, opposition and the value of patent rights," Research Policy, Elsevier, vol. 32(8), pages 1343-1363, September.
  23. 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.
  24. Brouwer, Erik & Kleinknecht, Alfred, 1999. "Innovative output, and a firm's propensity to patent.: An exploration of CIS micro data," Research Policy, Elsevier, vol. 28(6), pages 615-624, August.
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