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Gossip, Sexual Recombination and the El Farol Bar: modelling the emergence of heterogeneity

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Abstract

Brian Arthur's `El Farol Bar' model is extended so that the agents also learn and communicate. The learning and communication is implemented using an evolutionary process acting upon a population of mental models inside each agent. The evolutionary process is based on a Genetic Programming algorithm. Each gene is composed of two tree-structures: one to control its action and one to determine its communication. A detailed case-study from the simulations show how the agents have differentiated so that by the end of the run they had taken on very different roles. Thus the introduction of a flexible learning process and an expressive internal representation has allowed the emergence of heterogeneity.

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  • Bruce Edmonds, 1997. "Gossip, Sexual Recombination and the El Farol Bar: modelling the emergence of heterogeneity," Discussion Papers 97-31, Manchester Metropolitan University, Centre for Policy Modelling.
    • Handle: RePEc:wuk:mcpmdp:9731
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    References listed on IDEAS

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    1. Arthur, W Brian, 1994. "Inductive Reasoning and Bounded Rationality," American Economic Review, American Economic Association, vol. 84(2), pages 406-411, May.
    2. Eduardo Zambrano, 1997. "The Revelation Principle of Bounded Rationality," Research in Economics 97-06-060e, Santa Fe Institute.
    3. Helen Gaylard, 1996. "A Cognitive Approach to Modelling Structural Change," Discussion Papers 96-20, Manchester Metropolitan University, Centre for Policy Modelling.
    4. Bruce Edmonds & Scott Moss & Steve Wallis, 1996. "Logic, Reasoning and A Programming Language for Simulating Economic and Business Processes with Artificially Intelligent Agents," Discussion Papers 009, Manchester Metropolitan University, Centre for Policy Modelling.
    5. Scott Moss & Olga Kuznetsova, 1995. "Modelling the Process of Market Emergence," Discussion Papers 012, Manchester Metropolitan University, Centre for Policy Modelling.
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    1. Edmund Chattoe-Brown, 1998. "Just How (Un)realistic Are Evolutionary Algorithms As Representations of Social Processes?," Journal of Artificial Societies and Social Simulation, Journal of Artificial Societies and Social Simulation, vol. 1(3), pages 1-2.

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