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Leapfrogging in a Vertical Product Differentiation Model

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  • Luigi Filippini

Abstract

The model considers a two-period duopoly game where in the first period the leader produces a good with a given quality and the other firm can only imitate it. It is the Stackelberg case where, in addition, the leader has the choice of the quality of the good and the imitation is costly, but not prohibitively so. Under this assumption quantities and profits in terms of the quality are derived as subgame perfect equilibrium. In the second period there exists the possibility for the leader and/or the follower to make an investment. The outcome of this is uncertain: it could either be the case that a good of better quality can be introduced, or that a cost-reduction in producing the existing good is attained. The former case is a product innovation, whereas the latter case is a process innovation. By solving the game backwards as a function of the quality of the first period, there exists the possibility of an equilibrium where the follower chooses to invest and the leader does not invest .

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Bibliographic Info

Article provided by Taylor & Francis Journals in its journal International Journal of the Economics of Business.

Volume (Year): 6 (1999)
Issue (Month): 2 ()
Pages: 245-256

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Handle: RePEc:taf:ijecbs:v:6:y:1999:i:2:p:245-256

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Related research

Keywords: Leapfrogging; Product Differentiation;

References

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  1. Wauthy, X., 1994. "Quality Choice in Models of Vertical Differentiation," Discussion Papers (IRES - Institut de Recherches Economiques et Sociales) 1994033, Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES).
  2. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
  3. Shaked, Avner & Sutton, John, 1982. "Relaxing Price Competition through Product Differentiation," Review of Economic Studies, Wiley Blackwell, vol. 49(1), pages 3-13, January.
  4. Choi, Chong Ju & Shin, Hyun Song, 1992. "A Comment on a Model of Vertical Product Differentiation," Journal of Industrial Economics, Wiley Blackwell, vol. 40(2), pages 229-31, June.
  5. Fudenberg, Drew & Gilbert, Richard & Stiglitz, Joseph & Tirole, Jean, 1983. "Preemption, leapfrogging and competition in patent races," European Economic Review, Elsevier, vol. 22(1), pages 3-31, June.
  6. Kenneth Arrow, 1962. "Economic Welfare and the Allocation of Resources for Invention," NBER Chapters, in: The Rate and Direction of Inventive Activity: Economic and Social Factors, pages 609-626 National Bureau of Economic Research, Inc.
  7. GABSZEWICZ, Jean J. & THISSE, Jacques-François, . "Price competition, quality and income disparities," CORE Discussion Papers RP -370, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  8. Beath, John & Katsoulacos, Yannis & Ulph, David, 1989. "The Game-Theoretic Analysis of Innovation: A Survey," Bulletin of Economic Research, Wiley Blackwell, vol. 41(3), pages 163-84, July.
  9. Motta, Massimo, 1993. "Endogenous Quality Choice: Price vs. Quantity Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 41(2), pages 113-31, June.
  10. Beath, John & Katsoulacos, Yannis & Ulph, David, 1987. "Sequential Product Innovation and Industry Evolution," Economic Journal, Royal Economic Society, vol. 97(388a), pages 32-43, Supplemen.
  11. Vickers, John S, 1986. "The Evolution of Market Structure When There Is a Sequence of Innovations," Journal of Industrial Economics, Wiley Blackwell, vol. 35(1), pages 1-12, September.
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Cited by:
  1. Li, Ying & Jin, Yanhong H., 2009. "Racing to market leadership: Product launch and upgrade decisions," International Journal of Production Economics, Elsevier, vol. 119(2), pages 284-297, June.

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