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A Theory of Competitive Industry Dynamics With Innovation and Imitation

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Author Info

  • Serguey Braguinsky

    (SUNY Buffalo)

  • Salavat Gabdrakhmanov

    (University of Chicago)

  • Atsushi Ohyama

    (SUNY Buffalo)

Abstract

Empirical evidence on industry life-cycle reveals a pattern in which innovation rates remain fairly stable or are perhaps even higher at early stages, while patenting increases sharply as the industry matures. This increase in patenting in later stages is accompanied by net exit and lower rates of output growth and price decline. In this paper, we develop a dynamic model of a competitive industry with innovation and imitation that is consistent with these stylized facts. We derive an equilibrium growth path, along which leading firms invest in increasing the stock of technological knowledge and choose not to prevent imitation by other firms as long as the industry remains relatively small. As the industry expands including new entry, the leaders' optimal amount of investment gradually declines. We show that under some rather general conditions, there would exist a scale of the industry where innovating firms would choose to start preventing free imitation, bringing further expansion of the industry through new entry to a halt and causing net exit. (Copyright: Elsevier)

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File URL: http://dx.doi.org/10.1016/j.red.2007.03.003
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Bibliographic Info

Article provided by Elsevier for the Society for Economic Dynamics in its journal Review of Economic Dynamics.

Volume (Year): 10 (2007)
Issue (Month): 4 (October)
Pages: 729-760

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Handle: RePEc:red:issued:05-80

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Related research

Keywords: Competitive innovation; Imitation; Industry life-cycle; Growth; Industrial organization;

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References

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  1. Agarwal, Rajshree, 1998. "Evolutionary trends of industry variables," International Journal of Industrial Organization, Elsevier, vol. 16(4), pages 511-525, July.
  2. Boldrin, Michele & Levine, David, 2002. "Perfectly Competitive Innovation," CEPR Discussion Papers 3274, C.E.P.R. Discussion Papers.
  3. Alessandro Nuvolari, 2001. "Collective Invention during the British Industrial Revolution The Case of the Cornish Pumping Engine," DRUID Working Papers 01-05, DRUID, Copenhagen Business School, Department of Industrial Economics and Strategy/Aalborg University, Department of Business Studies.
  4. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-51, March.
  5. Jakob Klette & Samuel Kortum, 2002. "Innovating firms and aggregate innovation," Staff Report 300, Federal Reserve Bank of Minneapolis.
  6. Kyriazidou, Ekaterini & Pesendorfer, Martin, 1999. "Viennese Chairs: A Case Study for Modern Industrialization," The Journal of Economic History, Cambridge University Press, vol. 59(01), pages 143-166, March.
  7. Michele Boldrin & David K Levine, 2003. "Rent Seeking and Innovation," Levine's Working Paper Archive 618897000000000465, David K. Levine.
  8. Allen, Robert C., 1983. "Collective invention," Journal of Economic Behavior & Organization, Elsevier, vol. 4(1), pages 1-24, March.
  9. Jovanovic, Boyan, 1982. "Selection and the Evolution of Industry," Econometrica, Econometric Society, vol. 50(3), pages 649-70, May.
  10. McGahan, Anita M. & Silverman, Brian S., 2001. "How does innovative activity change as industries mature?," International Journal of Industrial Organization, Elsevier, vol. 19(7), pages 1141-1160, July.
  11. James Bessen & Robert M Hunt, 2004. "An Empirical Look at Software Patents," Levine's Working Paper Archive 122247000000000167, David K. Levine.
  12. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth Through Creative Destruction," Scholarly Articles 12490578, Harvard University Department of Economics.
  13. Gort, Michael & Klepper, Steven, 1982. "Time Paths in the Diffusion of Product Innovations," Economic Journal, Royal Economic Society, vol. 92(367), pages 630-53, September.
  14. Nuvolari, A., 2004. "Collective invention during the British Industrial Revolution: the case of the Cornish pumping engine," Working Papers 04.02, Eindhoven Center for Innovation Studies.
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Citations

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Cited by:
  1. Michele Boldrin & David K Levine, 2010. "Quality Ladders, Competition and Endogenous Growth," Levine's Working Paper Archive 661465000000000028, David K. Levine.
  2. Natália Barbosa & Ana Paula Faria & Vasco Eiriz, 2013. "Industry - and firm-specific factors of innovation novelty," NIPE Working Papers 10/2013, NIPE - Universidade do Minho.
  3. Slivko, Olga, 2012. "Innovation strategies of German firms: The effect of competition and intellectual property protection," ZEW Discussion Papers 12-089, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  4. Barbosa, Natália & Faria, Ana Paula, 2011. "Innovation across Europe: How important are institutional differences?," Research Policy, Elsevier, vol. 40(9), pages 1157-1169.
  5. Slivko, Olga & Theilen, Bernd, 2011. "Innovation or Imitation? The effect of spillovers and competitive pressure on firms' R&D strategy choice," Working Papers 2072/179618, Universitat Rovira i Virgili, Department of Economics.
  6. Braguinsky, Serguey & Rose, David C., 2009. "Competition, cooperation, and the neighboring farmer effect," Journal of Economic Behavior & Organization, Elsevier, vol. 72(1), pages 361-376, October.

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