- Title:
- Price increase and stability with new entries in Cournot markets
- Authors:
- Ramon Villanova, Jaume Paradís, Pelegrí Viader and Joan Miralles
- Date:
- October 2002 (Revised: January 2012)
- Abstract:
- It is widely accepted in the literature about the classical
Cournot oligopoly model that the loss of quasi–competitiveness is linked,
in the long run as new firms enter the market, to instability of the equilibrium.
In this paper, though, we present a model in which a stable
unique symmetric equilibrium is reached for any number of oligopolists
as industry price increases with each new entry. Consequently, the suspicion
that non–quasi–competitiveness implies, in the long run, instability
is proved false.
- Keywords:
- Cournot equilibrium, non-cooperative oligopoly, quasi-competitiveness, stability
- JEL codes:
- D43,C62
- Area of Research:
- Statistics, Econometrics and Quantitative Methods
- Published in:
- Keio Economic Studies, 48, 69-96, 2012
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