Abstract:
This paper explores the evolutionary foundations of altruism among siblings and extends the biologists kin-selection theory to a richer class of games between relatives. We show that a population will resist invasion by dominant mutant genes if individuals maximize a semi-Kantian utility function in games with their siblings. It is shown that a population that resists invasion by dominant mutants may be invaded by recessive mutants. Conditions are found under which a population resists invasion by dominant and also by recessive mutants.
JEL-codes:C70D10D63 (search for similar items in EconPapers)
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