Biology and Philosophy 28 (1):75-98 (2013)

Abstract
Extensive social choice theory is used to study the problem of measuring group fitness in a two-level biological hierarchy. Both fixed and variable group size are considered. Axioms are identified that imply that the group measure satisfies a form of consequentialism in which group fitness only depends on the viabilities and fecundities of the individuals at the lower level in the hierarchy. This kind of consequentialism can take account of the group fitness advantages of germ-soma specialization, which is not possible with an alternative social choice framework proposed by Okasha, but which is an essential feature of the index of group fitness for a multicellular organism introduced by Michod, Viossat, Solari, Hurand, and Nedelcu to analyze the unicellular-multicellular evolutionary transition. The new framework is also used to analyze the fitness decoupling between levels that takes place during an evolutionary transition.
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DOI 10.1007/s10539-012-9348-9
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References found in this work BETA

Evolution and the Levels of Selection.Samir Okasha - 2006 - Oxford University Press.
Evolution and the Levels of Selection.Samir Okasha - 2009 - Critica 41 (123):162-170.
The Major Transitions in Evolution.John Maynard Smith & Eors Szathmary - 1996 - Journal of the History of Biology 29 (1):151-152.

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Citations of this work BETA

The Relation Between Kin and Multilevel Selection: An Approach Using Causal Graphs.Samir Okasha - 2016 - British Journal for the Philosophy of Science 67 (2):435-470.
Social Choice Theory.Christian List - 2013 - Stanford Encyclopedia of Philosophy.

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