Managing Market Complexity pp 103-111 | Cite as
The shark game: equilibrium with bounded rationality
Abstract
We propose an intuitive toy model of a financial market where investors are represented by hungry sharks. Each shark learns the best strategy through a trial and error procedure calibrated to human characteristics. The mix of rewards for eating or not can create a large array of scenarios that can be used to observe the emergence of equilibrium from simple to more realistic situations. Using an agent-based model we create an environment where sharks learn and try to optimize their payoffs. Our preliminary results show that sharks,like investors, can learn to coordinate and generate a equilibrium under rational expectations. We also find cases where equilibrium cannot be found and the situation becomes a minority-type game.
Keywords
Trading Volume Rational Expectation Bounded Rationality Performance Strength American Economic AssociationPreview
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