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Expectations, Animal Spirits, and Evolutionary Dynamics

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  • Angelo Antoci

    (SMU)

  • Massimiliano Landi

Abstract

We consider a (deterministic) evolutionary model where players have dynamic expectations about the strategy distribution. We provide a global analysis of the co-evolution of play and expectations for a generic two{by{two game. Besides the the typical indeterminacy of the evolutionary dynamics, we find some other ones : for any initial strategy configuration the dynamics can converge to any asymptotically stable fixed point, for different initial values of the expectations. Moreover, starting from the same initial pair of strategy configuration and values of expectations, the dynamics may lead to different asymptotically stable fixed points for different parameters of the expectations.

Suggested Citation

  • Angelo Antoci & Massimiliano Landi, 2006. "Expectations, Animal Spirits, and Evolutionary Dynamics," Macroeconomics Working Papers 22057, East Asian Bureau of Economic Research.
    • Handle: RePEc:eab:macroe:22057
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    References listed on IDEAS

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    More about this item

    Keywords

    evolutionary games; dynamic systems; animal spirits;
    All these keywords.

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games

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