Do beliefs in omniscient and punitive moralizing gods contribute promote ingroup cooperation? And what about their effect on intergroup cooperation with people who belong to other religion?
We are providing some answers to these questions in our new paper called “Moralizing gods, impartiality and religious parochialism across 15 societies". Together, in two experiments with 2228 participants from 15 populations, the ratings of gods as monitoring and punishing predicted resource-sharing with co-religionists. Sharing with outgroups varied between sites: in the absence of intergroup hostility, the results suggest that moralizing gods may promote cooperation with outgroups.
Jana Nenadalová, Piotr Szymanek (Jagiellonian University), and Neil Van Leeuwen (Georgia State University) received a grant from the Open Science of Religion initiative (supported by the John Templeton Foundation) for a virtual reality study.
In his thesis, titled Costly signaling theory of pilgrimage: The case study of pilgrimage to Santiago de Compostela, he studied whether pilgrimages may function as costly signals of commitment to group norms.
