The Devoted Actor as Parochial Altruist – by Hammed Sheikh and colleagues
“The Devoted Actor as Parochial Altruist: Sectarian Morality, Identity Fusion, and Support for Costly Sacrifices” (December 30, 2014.) In Cliodynamics: The Journal of Quantitative History and Cultural Evolution. , vol 5(1). By Sheikh, Hammad; Atran, Scott; Ginges, Jeremy; Wilson, Lydia; Obeid, Nadine; Davis, Richard.