Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games

An N-firm production game known as oligopoly will be examined with isoelastic price function and linear cost under al Cournot competition. After the best responses of the firms are determined, a dynamic system with adaptive expectations is introduced. It is first shown that the local asymptotic beha...

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Main Authors: Akio Matsumoto, Ferenc Szidarovszky
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2011/380530
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author Akio Matsumoto
Ferenc Szidarovszky
author_facet Akio Matsumoto
Ferenc Szidarovszky
author_sort Akio Matsumoto
collection DOAJ
description An N-firm production game known as oligopoly will be examined with isoelastic price function and linear cost under al Cournot competition. After the best responses of the firms are determined, a dynamic system with adaptive expectations is introduced. It is first shown that the local asymptotic behavior of the system is identical with that of the adaptive adjustment process in which the firms cautiously determine their outputs. Dynamic analysis is confined to two special cases, one in which N is divided into two groups and the other in which N is divided into three groups. Then stability conditions will be derived and the global behavior of the equilibria will be illustrated including chaos control. Lastly the two- and three-group models are compared with two-firm (duopoly) and three-firm (triopoly) models to shed light on roles of the number of the firms.
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spelling doaj-art-03e548608fd942eea0541c69b44801a42025-08-20T02:03:19ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2011-01-01201110.1155/2011/380530380530Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot GamesAkio Matsumoto0Ferenc Szidarovszky1Department of Economics, Chuo University, 742-1 Higashi-Nakano, Hachioji, Tokyo 192-0393, JapanDepartment of Systems and Industrial Engineering, University of Arizona, Tucson, AZ 85721-0020, USAAn N-firm production game known as oligopoly will be examined with isoelastic price function and linear cost under al Cournot competition. After the best responses of the firms are determined, a dynamic system with adaptive expectations is introduced. It is first shown that the local asymptotic behavior of the system is identical with that of the adaptive adjustment process in which the firms cautiously determine their outputs. Dynamic analysis is confined to two special cases, one in which N is divided into two groups and the other in which N is divided into three groups. Then stability conditions will be derived and the global behavior of the equilibria will be illustrated including chaos control. Lastly the two- and three-group models are compared with two-firm (duopoly) and three-firm (triopoly) models to shed light on roles of the number of the firms.http://dx.doi.org/10.1155/2011/380530
spellingShingle Akio Matsumoto
Ferenc Szidarovszky
Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games
Discrete Dynamics in Nature and Society
title Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games
title_full Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games
title_fullStr Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games
title_full_unstemmed Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games
title_short Stability, Bifurcation, and Chaos in N-Firm Nonlinear Cournot Games
title_sort stability bifurcation and chaos in n firm nonlinear cournot games
url http://dx.doi.org/10.1155/2011/380530
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