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Hamilton's Two Conceptions of Social Fitness

Birch, Jonathan (2016) Hamilton's Two Conceptions of Social Fitness. [Preprint]

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Abstract

Hamilton introduced two conceptions of social fitness, which he called neighbour-modulated fitness and inclusive fitness. Although he regarded them as formally equivalent, a re-analysis of his own argument for their equivalence brings out two important assumptions on which it rests: weak additivity and actor’s control. When weak additivity breaks down, neither fitness concept is appropriate in its original form. When actor’s control breaks down, neighbour-modulated fitness may be appropriate, but inclusive fitness is not. Yet I argue that, despite its more limited domain of application, inclusive fitness provides a distinctively valuable perspective on social evolution.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Birch, Jonathanj.birch2@lse.ac.uk
Keywords: inclusive fitness neighbour-modulated fitness fitness maximization kin selection
Subjects: Specific Sciences > Biology > Evolutionary Theory
Depositing User: Dr Jonathan Birch
Date Deposited: 27 Apr 2017 16:55
Last Modified: 27 Apr 2017 16:55
Item ID: 11962
Subjects: Specific Sciences > Biology > Evolutionary Theory
Date: 12 April 2016
URI: http://philsci-archive.pitt.edu/id/eprint/11962

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