Genetic algorithms for Cournot game

Abstract

We study the Agent Computational Economics’ problem of simulating agents’ behavior in a Cournot oligopoly model, by the use of co-evolutionary learning Genetic Algorithms. We try to discover algorithms of that kind, which conclude to the Nash Equilibrium outcome, and hence, can be used as heuristics for discovering the Nash Equilibrium quantities, as well. In order to quantify the difference between a given state of the co-evolutionary genetic algorithms and the goal outcome, we introduce a measure that is defined on the lumped states of the corresponding Markov Chain. We finally introduce an optimization algorithm that is based on the convergence of sequential best replies, and uses a genetic algorithm to identify the best reply at any given situation, which convergences to the Nash Equilibrium, under the aforementioned requirement.
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