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Simple and complex adjustment dynamics in Cournot duopoly models. (English) Zbl 1080.91541
Summary: We are investigating microeconomic foundations of Cournot duopoly games such that the reaction functions are unimodal. We demonstrate that cost functions incorporating an interfirm externality lead to a system of coupled logistic equations. In the situation where agents take turns, we observe periodic and complex behavior. A closer analysis reveals some well-known local bifurcations. In a more general situation, where agents move simultaneously, we observe global bifurcations which typically occur in two-parameter families of two-dimensional endomorphisms.

91B62Growth models in economics
91A40Game-theoretic models
Full Text: DOI
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