English, Article, Journal or magazine article edition: On the Evolution of Imitative Behavior Bj&oumlrnerstedt, Jonas; Jonas Bjoernerstedt; Karl H. Schlag

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Bookmark: http://trove.nla.gov.au/version/52150
Physical Description
  • preprint
Language
  • English

Edition details

Title
  • On the Evolution of Imitative Behavior
Author
  • Bj&​oumlrnerstedt, Jonas
  • Jonas Bjoernerstedt
  • Karl H. Schlag
Physical Description
  • preprint
Notes
  • We analyze the evolution of behavioral rules for learning how to play a two-armed bandit. Individuals have no information about the underlying pay-off distributions and have limited memory about their own past experience. Instead they must rely on information obtained trough observing the performance of other individuals. Evolution is modelled using the replicator dynamic with the revision behaviors as replicators. We find that evolution favors a special class of imitative rules. These so-called strictly improving rules, that also play an important role in a bounded rational selection approach (Schlag [16]), are found to be neutrally stable when facing any two-armed bandit.
  • multi-armed bandit, social learning, payoff increasing, improving, proportional imitation rule, replicator dynamic, neutral stability, survival
  • RePEc:bon:bonsfb:378
  • We analyze the evolution of behavioral rules for learning how to play a two-armed bandit. Individuals have no information about the underlying pay-off distributions and have limited memory about their own past experience. Instead they must rely on information obtained through observing the per-formance of other individuals. Evolution is modelled using the replicator dynamic with the revision behaviors as replicators. We find that evolution favors a special class of imitative rules. These so-called strictly improving rules (Schlag, 1996) are found to be neutrally stable when facing any two-armed bandit. Further emphasis is put on which rules survive when.
  • multi-armed bandit, social learning, payoff increasing, propor- tional imitation rule, replicator dynamic, neutral stability, survival.
  • RePEc:els:esrcls:029
Language
  • English
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