title: Is there an omission effect in prosocial behavior? A laboratory experiment on passive vs. active generosity.
abstract: We investigate whether individuals are more prone to act selfishly if they can passively allow for an outcome to be implemented (omission) rather than having to make an active choice (commission). In most settings, active and passive choice alternatives differ in terms of factors such as the presence of a suggested option, costs of taking an action, and awareness. We isolate the omission effect from confounding factors in three experiments, and find no evidence that the distinction between active and passive choices has an independent effect on the propensity to implement selfish outcomes. This suggests that increased selfishness through omission, as observed in various economic choice situations, is driven by other factors than a preference for selfish omissions.
authors.affiliation: Division of Economics, Department of Management and Engineering, Linköping University, Linköping, Sweden.
authors.forename: Manja
authors.initials: M
authors.lastname: Gärtner
authors.affiliation: Institute for International Economic Studies (IIES), Stockholm University, Stockholm, Sweden.
authors.forename: Anna
authors.identifier: http://orcid.org/0000-0001-5200-1628
authors.initials: A
authors.lastname: Sandberg
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D012919:Social Behavior