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Growth in a Differentiated Oligopoly with Product Innovation


  • R. Cellini
  • L. Lambertini
  • I. P. Ottaviano


We present a two-sector model where oligopolistic firms sell differentiated products. New products are introduced over time through formal R&D activity. Market competition takes place either a la Cournot or a la Bertrand. We show that tougher competition associated wit price-setting behavior does not entail a larger social welfare as long as it requires more effort for the production of the final goods.

Suggested Citation

  • R. Cellini & L. Lambertini & I. P. Ottaviano, 1999. "Growth in a Differentiated Oligopoly with Product Innovation," Working Papers 363, Dipartimento Scienze Economiche, Universita' di Bologna.
  • Handle: RePEc:bol:bodewp:363

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    12. Peretto, Pietro F., 1999. "Cost reduction, entry, and the interdependence of market structure and economic growth," Journal of Monetary Economics, Elsevier, vol. 43(1), pages 173-195, February.
    13. Okuguchi, Koji, 1987. "Equilibrium prices in the Bertrand and Cournot oligopolies," Journal of Economic Theory, Elsevier, vol. 42(1), pages 128-139, June.
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    16. Vives, Xavier, 1985. "On the efficiency of Bertrand and Cournot equilibria with product differentation," Journal of Economic Theory, Elsevier, vol. 36(1), pages 166-175, June.
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