{"pk":30132,"title":"A Resource-Rational Process Model of Fairness in the Ultimatum Game","subtitle":null,"abstract":"Widely regarded as the cornerstone of justice (Rawls, 1971),fairness constitutes one of the pillars of human morality. TheUltimatum Game (UG), extensively studied in behavioral eco-nomics, is the canonical task for studying fairness. In sharpcontrast to the predictions of normative standards in game the-ory, people typically reject low offers in UG. In this work,we present the first resource-rational process model of UG.Concretely, by taking into account people’s expectations, weshow that Nobandegani et al.’s (2018) resource-rational pro-cess model, sample-based expected-utility, provides a unifiedaccount of several experimental findings in UG, namely, theeffects of expectation, competition, and time pressure. Assum-ing that expectation serves as a reference point for subjectivevaluation of an offer, we show that the rejection of low offers inUG can arise from purely self-interested expected-utility max-imization. We conclude by discussing the implication of ourwork for moral decision-making and, more broadly, human ra-tionality.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Ultimatum game; moral decision-making; fair-ness; rational process models"}],"section":"Papers accepted as Talks, appearing in proceedings only","is_remote":true,"remote_url":"https://escholarship.org/uc/item/7wg1g11r","frozenauthors":[{"first_name":"Ardavan","middle_name":"S.","last_name":"Nobandegani","name_suffix":"","institution":"McGill University","department":""},{"first_name":"Constance","middle_name":"","last_name":"Destais","name_suffix":"","institution":"University College London","department":""},{"first_name":"Thomas","middle_name":"R.","last_name":"Shultz","name_suffix":"","institution":"McGill University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2020-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/30132/galley/19986/download/"}]}