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Finite Memory Distributed Systems

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Author Info
Dorofeenko, Victor (Department of Economics and Finance, Institute for Advanced Studies, Vienna, Austria)
Shorish, Jamsheed (Department of Economics and Finance, Institute for Advanced Studies, Vienna, Austria)

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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.

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File URL: http://www.ihs.ac.at/publications/eco/es-190.pdf
File Format: application/pdf
File Function: First version, 2006
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Publisher Info
Paper provided by Institute for Advanced Studies in its series Economics Series with number 190.

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Length: 25 pages
Date of creation: May 2006
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Handle: RePEc:ihs:ihsesp:190

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Related research
Keywords: Fixed strategy Prisoner's dilemma Fokker-Plank Distributed system

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Find related papers by JEL classification:
C61 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming - - - Optimization Techniques; Programming Models; Dynamic Analysis
C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games

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