Analyses of the costs and benefits of immigration have not considered the dependence of an ethny's reproductive fitness on its monopoly of a demarcated territory. Global assays of human genetic variation allow estimation of the genetic losses incurred by a member of a population when random fellow ethnics are replaced by immigrants from different ethnies. This potential loss defines an individual's ethnic genetic interest as a quantity that varies with the genetic distance of potential immigrants. W. D. Hamilton showed that self-sacrificial altruism is adaptive when it preserves the genetic interests of a population of genetically similar individuals. Ethnic genetic interest can be so large that altruism on behalf of one's ethny-'ethnic nepotism'-can be adaptive when it prevents replacement. It follows that ethnies usually have an interest in securing and maintaining a monopoly over a demarcated territory, an idea consonant with the universal nationalism of Bismarck and Woodrow Wilson.
CITATION STYLE
Salter, F. (2002). Estimating ethnic genetic interests: Is it adaptive to resist replacement migration? Population and Environment, 24(2), 111–140. https://doi.org/10.1023/A:1020740703855
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