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.
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Paper provided by ESRC Centre on Economics Learning and Social Evolution in its series ELSE working papers with number
017.
Find related papers by JEL classification: C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General D10 - Microeconomics - - Household Behavior - - - General D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
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