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Adaptive Risk Aversion in Social Dilemmas

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Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 8886))

Abstract

Risks are ubiquitous in many social dilemmas. A decision to cooperate (or invest in a common pool) is inherently “risky” when the reward received depends on the frequency of actions displayed by other social group members. In this paper, we study the evolutionary dynamics of the multiple-group public goods game where the population of mobile individuals is divided into fixed-sized groups. Agents use continuous investment strategies. This approach allows for the evolution of an intermediate level of investments correlated with specific risk aversion levels. Agents are also presented with an opportunity to switch groups at the end of each round based on an environmental trigger. Detailed simulation experiments using an evolutionary game theory framework show that investment levels can be maintained within groups. Over time, the mean level of the risk aversion trait increases especially for larger groups. In the conditional migration scenarios, levels of investment consistent with risk aversion emerge.

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Kirley, M., von der Osten, F.B. (2014). Adaptive Risk Aversion in Social Dilemmas. In: Dick, G., et al. Simulated Evolution and Learning. SEAL 2014. Lecture Notes in Computer Science, vol 8886. Springer, Cham. https://doi.org/10.1007/978-3-319-13563-2_38

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  • DOI: https://doi.org/10.1007/978-3-319-13563-2_38

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-13562-5

  • Online ISBN: 978-3-319-13563-2

  • eBook Packages: Computer ScienceComputer Science (R0)

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