MEMORY BOOSTS COOPERATION

Author:

ALONSO-SANZ RAMÓN1,MARTÍN MARGARITA2

Affiliation:

1. ETSI Agrónomos (Estadística), UPM, C. Universitaria. 28040, Madrid, Spain

2. F.Veterinaria (Bioquímica y Biol. Molecular IV), UCM, C. Universitaria. 28040, Madrid, Spain

Abstract

The standard spatial formulation of the iterated Prisoner's Dilemma is ahistoric (memoryless): i.e., only the results generated in the last round are taken into account in deciding the next choice. Historic memory can be implemented by featuring players by a summary of their previous winnigs and choices. Here we study the effect of limited trailing memory: only the last three iterations are recorded. The effects of full and discounted memory are assessed. It is concluded that this short-type memory stimulates cooperation.

Publisher

World Scientific Pub Co Pte Lt

Subject

Computational Theory and Mathematics,Computer Science Applications,General Physics and Astronomy,Mathematical Physics,Statistical and Nonlinear Physics

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