4 A Model of Co-evolving Social Agents

4.1 The Set-up

The model is based upon Brian Arthur's `El Farol Bar' model [2], but extended in several respects, principally by introducing learning and communication. There is a fixed population of agents (in this case 10). Each week each agent has to decide whether or not to go to El Farol's Bar. Generally, it is advantageous for an agent to go unless it is too crowded, which it is if 67% or more of all the agents go (in this case 7 or more). This advantage is expressed as a numeric utility, but this only impacts on the model in the agent's evaluations of their models. Before making their decision agents have a chance to communicate with each other. This model can be seen as an extension of the work in [1], which investigates a three player game.

4.1.1 - The environment
4.1.2 - The agents
4.1.3 - Communication and Imitation
4.1.4 - Runs of the model
4.1.5 - Implementation

Capturing Social Embeddedness: a constructivist approach - Bruce Edmonds - 30 OCT 98

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