Incorporating Phenotype Plasticity into the Indirect Evolutionary Approach

Rebecca Schmitt

MPRA Paper from University Library of Munich, Germany

Abstract: Up to now, the Indirect Evolutionary Approach (IEA) has been based on phenotypes which are represented by unchangeable preference parameters and, as a consequence, by time-invariant utility functions. Here we introduce phenotype plasticity into the IEA by providing a model which includes changeable individual preference parameters. We show that such phenotype plasticity can be a stable phenomenon in a stable environment. For 2x2 symmetric evolutionary games, we identify conditions under which a population of non-plastic phenotypes can be invaded by mutants of a plastic phenotype, but not by mutants of a non-plastic phenotype.

Keywords: Evolutionary Games; Indirect Evolution; Preference Theory; Taste; Instability of Preferences; Evolution of Preferences (search for similar items in EconPapers)
JEL-codes: C73 D10 D11 (search for similar items in EconPapers)
Date: 2015-07-15
New Economics Papers: this item is included in nep-cbe and nep-evo
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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:65734

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