Local and group interaction in prisoners' dilemma experiments

Kirchkamp, Oliver ; Nagel, Rosemarie

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URL: http://ub-madoc.bib.uni-mannheim.de/2832
URN: urn:nbn:de:bsz:180-madoc-28327
Document Type: Working paper
Year of publication: 2000
The title of a journal, publication series: None
Publication language: English
Institution: School of Law and Economics > Sonstige - Fakultät für Rechtswissenschaft und Volkswirtschaftslehre
MADOC publication series: Sonderforschungsbereich 504 > Rationalitätskonzepte, Entscheidungsverhalten und ökonomische Modellierung (Laufzeit 1997 - 2008)
Subject: 330 Economics
Classification: JEL: R12 H41 D83 D74 C92 C72 ,
Subject headings (SWD): Gefangenendilemma , Kooperatives Spiel , Interaktion
Keywords (English): Local interaction , experiments , prisoners dilemma
Abstract: This study investigates experimentally the effects of locality on learning and strategic behaviour in a repeated prisoners’ dilemma. We compare a simple situation that models space (players interact only with their neighbours) with one that does not (players interact with all members of the population). Within this context different information conditions are studied. We find that imitation, while assumed to be a driving force in many models of spatial evolution, is a negligible factor in the experiment. Behaviour is driven by reinforcement learning and, under specific conditions, strategic behaviour.
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