Kin selection and ethnic group selection

The Sciences of Ethics and Political Philosophy Reading Group will get together on October 11 at 2 PM [WEST] to discuss a paper by Doug Jones (2017), Kin selection and ethnic group selection [Evolution and Human Behavior, 39(1), 9-18].

Abstract

Ethnicity looks something like kinship on a larger scale. The same math can be used to measure genetic similarity within ethnic/racial groups and relatedness within families. For example, members of the same continental race are about as related (r = 0.18–0.26) as half-siblings (r = 0.25). However (contrary to some claims) the theory of kin selection does not apply straightforwardly to ethnicity, because inclusive fitness calculations based on Hamilton’s rule break down when there are complicated social interactions within groups, and/or groups are large and long-lasting. A more promising approach is a theory of ethnic group selection, a special case of cultural group selection. An elementary model shows that the genetic assimilation of a socially enforced cultural regime can promote group solidarity and lead to the regulation of recruitment to groups, and to altruism between groups, based on genetic similarity – in short, to ethnic nepotism. Several lines of evidence, from historical population genetics and political psychology, are relevant here.

Anyone interested in participating can send an email to Filipe Faria: filipefaria@fcsh.unl.pt.

The Sciences of Ethics and Political Philosophy Reading Group is an international monthly-assembling online reading group co-hosted by the CFCUL and the Ethics and Political Philosophy Lab (EPLab) of the IFILNOVA. More information about the group here.