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Leadership Cycles

  • Piercarlo Zanchettin

    ()

  • Vincenzo Denicolò

We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new en-trant. Initially, new leaders are eager to enlarge their lead and do much of the research, but if they innovate repeatedly, their propensity to invest in R&D decreases. Eventually they stop doing research ltogether, and as they are overtaken a new cycle starts. The model generates a skewed firm size distribution and a deviation from Gibrat's law that accord with the empirical evidence. We also consider various policy measures, showing that in some cases policy should favour R&D by incumbents, not outsiders, and that stronger patent protection may reduce innovation and growth.

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Paper provided by Department of Economics, University of Leicester in its series Discussion Papers in Economics with number 09/25.

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Date of creation: Nov 2009
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Handle: RePEc:lec:leecon:09/25
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  1. Mark L.J. Wright & Esteban Rossi-Hansberg, 2004. "Firm Size Dynamics in the Aggregate Economy," 2004 Meeting Papers 878, Society for Economic Dynamics.
  2. Cozzi, Guido, 2007. "Self-fulfilling prophecies in the quality ladders economy," Journal of Development Economics, Elsevier, vol. 84(1), pages 445-464, September.
  3. Grossman, G.M. & Helpman, E., 1989. "Quality Ladders And Product Cycles," Papers 152, Princeton, Woodrow Wilson School - Public and International Affairs.
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  6. Rasmus Lentz & Dale T. Mortensen, 2005. "An Empirical Model of Growth Through Product Innovation," Boston University - Department of Economics - Working Papers Series WP2005-004, Boston University - Department of Economics.
  7. Jakob Klette & Samuel Kortum, 2002. "Innovating firms and aggregate innovation," Staff Report 300, Federal Reserve Bank of Minneapolis.
  8. Barro, Robert J. & Sala-i-Martin, Xavier, 1994. "Quality Improvements in Models of Growth," CEPR Discussion Papers 1076, C.E.P.R. Discussion Papers.
  9. Chu, Angus C., 2007. "Optimal Patent Breadth: Quantifying the Effects of Increasing Patent Breadth," MPRA Paper 3910, University Library of Munich, Germany.
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  13. Cabral, Luís M B & Mata, José, 2001. "On the Evolution of the Firm Size Distribution: Facts and Theory," CEPR Discussion Papers 3045, C.E.P.R. Discussion Papers.
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  16. Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
  17. Howitt, Peter & Griffith, Rachel & Aghion, Philippe & Blundell, Richard & Bloom, Nick, 2005. "Competition and Innovation: An Inverted-U Relationship," Scholarly Articles 4481507, Harvard University Department of Economics.
  18. Grossman, G.M. & Helpman, E., 1989. "Quality Ledders In The Theory Of Growth," Papers 148, Princeton, Woodrow Wilson School - Public and International Affairs.
  19. Paul S. Segerstrom, 2007. "Intel Economics," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 48(1), pages 247-280, 02.
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  21. repec:fth:harver:1473 is not listed on IDEAS
  22. Segerstrom, Paul S & Anant, T C A & Dinopoulos, Elias, 1990. "A Schumpeterian Model of the Product Life Cycle," American Economic Review, American Economic Association, vol. 80(5), pages 1077-91, December.
  23. Evans, David S., 1986. "Tests of Alternative Theories of Firm Growth," Working Papers 86-36, C.V. Starr Center for Applied Economics, New York University.
  24. Vincenzo Denicolò & Piercarlo Zanchettin, 2010. "Competition, Market Selection and Growth," Economic Journal, Royal Economic Society, vol. 120(545), pages 761-785, 06.
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