Finite Memory Distributed Systems

Victor Dorofeenko and Jamsheed Shorish
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Victor Dorofeenko: Department of Economics and Finance, Institute for Advanced Studies, Vienna, Austria

No 190, Economics Series from Institute for Advanced Studies

Abstract: A distributed system model is studied, where individual agents play repeatedly against each other and change their strategies based upon previous play. It is shown how to model this environment in terms of continuous population densities of agent types. A complication arises because the population densities of different strategies depend upon each other not only through game payoffs, but also through the strategy distributions themselves. In spite of this, it is shown that when an agent imitates the strategy of his previous opponent at a sufficiently high rate, the system of equations which governs the dynamical evolution of agent populations can be reduced to one equation for the total population. In a sense, the dynamics 'collapse' to the dynamics of the entire system taken as a whole, which describes the behavior of all types of agents. We explore the implications of this model, and present both analytical and simulation results.

Keywords: Fixed strategy; Prisoner's dilemma; Fokker-Plank; Distributed system (search for similar items in EconPapers)
JEL-codes: C61 C73 (search for similar items in EconPapers)
Pages: 25 pages
Date: 2006-05
New Economics Papers: this item is included in nep-evo
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https://irihs.ihs.ac.at/id/eprint/1708 First version, 2006 (application/pdf)

Related works:
Journal Article: Finite Memory Distributed Systems (2006)
Working Paper: Finite Memory Distributed Systems (2006)
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Persistent link: https://EconPapers.repec.org/RePEc:ihs:ihsesp:190

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