Dynamical instabilities in a simple minority game with discounting (Articolo in rivista)

Type
Label
  • Dynamical instabilities in a simple minority game with discounting (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Challet, D; De Martino, A; Marsili, M (2008)
    Dynamical instabilities in a simple minority game with discounting
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Challet, D; De Martino, A; Marsili, M (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Challet, D.] Inst Sci Interchange, I-10133 Turin, Italy; [Challet, D.] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland; [De Martino, A.] Univ Roma La Sapienza, Dipartimento Fis, CNR, INFM,SMC, I-00185 Rome, Italy; [Marsili, M.] Abdus Salam Int Ctr Theoret Phys, I-34014 Trieste, Italy (literal)
Titolo
  • Dynamical instabilities in a simple minority game with discounting (literal)
Abstract
  • We explore the effect of discounting and experimentation in a simple model of interacting adaptive agents. Agents belong to either of two types and each has to decide whether to participate in a game or not, the game being pro. table when there is an excess of players of the other type. We find the emergence of large fluctuations as a result of the onset of a dynamical instability which may arise discontinuously (increasing the discount factor) or continuously (decreasing the experimentation rate). The phase diagram is characterized in detail and noise amplification close to a bifurcation point is identified as the physical mechanism behind the instability. (literal)
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