Reading focus
Syllabus: How Do Culture, Morality and Religion Shape One Another?
Distinguish measured punishment beliefs, experimental reminders and the identities of the recipients.
Why you’re reading it. Examine whether a proposed mechanism extends cooperation beyond the local group and how far that claim reaches.
A question to consider. How would adding a distant person from another religion change the question this allocation task can answer?
Why this reading
Purzycki and colleagues connect beliefs about knowledgeable, punishing gods with allocation choices involving distant co-religionists. The comparative design tests a proposed extension of cooperation beyond local partners while making the boundaries of that extension visible.
Before you read
In the allocation task, private choices and die rolls determine where coins go; aggregate departures from an even split provide evidence of favoritism. Co-religionists share a religious affiliation. Distant co-religionists are not equivalent to strangers from every social or religious group.
Read for
- Distinguish measured beliefs about punishment and knowledge from the experimental religious reminders.
- Compare allocations involving the self, local co-religionists and distant co-religionists, and follow the uncertainty across field sites.
Consider afterwards
- What alternative process could produce both stronger punishment beliefs and more impartial allocations to distant co-religionists?
- Which additional recipients would be needed to test whether cooperation extends across religious boundaries?
Editorial context
The study includes 591 participants in eight communities; the many coin allocations are repeated observations, not that many independent people. Beliefs were not randomly assigned, and the priming treatments did not produce a consistent overall effect. The distant recipients shared religious and ethnic or national identities, limiting claims about outgroup generosity. A larger follow-up by Lang and colleagues extended the comparisons to religious outgroups: those results were mixed and sensitive to setting and analysis. Neither paper establishes that a single religious belief caused the historical growth of large societies.