Individuals, groups, fitness and utility: Multi-level selection meets social choice theory
Biology and Philosophy 24 (5):561-584 (2009)
| Abstract | In models of multi-level selection, the property of Darwinian fitness is attributed to entities at more than one level of the biological hierarchy, e.g. individuals and groups. However, the relation between individual and group fitness is a controversial matter. Theorists disagree about whether group fitness should always, or ever, be defined as total (or average) individual fitness. This paper tries to shed light on the issue by drawing on work in social choice theory, and pursuing an analogy between fitness and utility. Social choice theorists have long been interested in the relation between individual and social utility, and have identified conditions under which social utility equals total (or average) individual utility. These ideas are used to shed light on the biological problem. | |||||||||
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Grant Ramsey & Robert Brandon (2011). Why Reciprocal Altruism is Not a Kind of Group Selection. Biology and Philosophy 26 (3):385-400.
Alejandro Rosas (2010). Beyond Inclusive Fitness? On A Simple And General Explanation For The Evolution of Altruism. Philosophy and Theory in Biology 2.
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