Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/282688 
Year of Publication: 
2023
Series/Report no.: 
IZA Discussion Papers No. 16561
Publisher: 
Institute of Labor Economics (IZA), Bonn
Abstract: 
The expectation of a sum of utilities is a core criterion for evaluating policies and social welfare under variable population and social risk. Our contribution is to show that a previously unrecognized combination of weak assumptions yields general versions of this criterion, both in fixed-population and in variable-population settings. We show that two dimensions of weak dominance (over risk and individuals) characterize a social welfare function with two dimensions of additive separability. So social expected utility emerges merely from social statewise dominance (given other axioms). Moreover, additive utilitarianism, in the variable- population setting, arises from a new, weak form of individual stochastic dominance with two attractive properties: It only applies to lives certain to exist (so it does not compare life against non-existence), and it avoids prominent egalitarian objections to utilitarianism by only applying if certain correlations are preserved. Our result provides a foundation for evaluating climate change, growth, and depopulation.
Subjects: 
social risk
variable population
utilitarianism
JEL: 
D63
D81
Document Type: 
Working Paper

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