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  Stochastic gain in population dynamics

Traulsen, A., Röhl, T., & Schuster, H. G. (2004). Stochastic gain in population dynamics. Physical Review Letters, 93(2). doi:10.1103/PhysRevLett.93.028701.

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Traulsen, A.1, Author           
Röhl, T.2, Author
Schuster, H. G.2, Author
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1External, ou_persistent22              
2external, ou_persistent22              

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 Abstract: We introduce an extension of the usual replicator dynamics to adaptive learning rates. We show that a population with a dynamic learning rate can gain an increased average payoff in transient phases and can also exploit external noise, leading the system away from the Nash equilibrium, in a resonancelike fashion. The payoff versus noise curve resembles the signal to noise ratio curve in stochastic resonance. Seen in this broad context, we introduce another mechanism that exploits fluctuations in order to improve properties of the system. Such a mechanism could be of particular interest in economic systems.

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 Dates: 20042004
 Publication Status: Issued
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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: Woodbury, N.Y., etc. : American Physical Society.
Pages: - Volume / Issue: 93 (2) Sequence Number: - Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1