Nonlinear dynamics of a Cournot duopoly game with differentiated products

Anna Agliari, Nicolo' Pecora, A. K. Naimzada

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49 Citazioni (Scopus)

Abstract

In this paper we investigate the dynamics of a Cournot duopoly game with differentiated goods in which boundedly rational firms apply a gradient adjustment mechanism to update the quantity produced in each period. As in Ahmed et al. (2015), the demand functions are derived from an underlying CES utility function. The present analysis reveals that a higher degree of product differentiation may destabilize the Nash equilibrium. Through local analysis we provide conditions for the stability of the market equilibrium and through global analysis we investigate some bifurcations which cause qualitative changes in the structure of the attractors and of their basins as some parameters are allowed to vary. Since a higher degree of product differentiation tends to reduce competition and may generate undesirable fluctuations, an implication of our findings is that a stronger competition could help in stabilizing the unique Nash equilibrium.
Lingua originaleEnglish
pagine (da-a)1-15
Numero di pagine15
RivistaApplied Mathematics and Computation
DOI
Stato di pubblicazionePubblicato - 2016

Keywords

  • Bifurcation
  • Cournot game
  • Global analysis
  • Oligopoly
  • Product differentiation

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