We conduct trust games in three villages in a northeastern Romanian commune. From 1775-1919, these villages were arbitrarily assigned to opposite sides of the Habsburg and Ottoman/Russian border despite being located seven kilometers apart. All three empires were ruled by outsiders to Romania,...

When individuals trade with strangers, there is a temptation to renege on agreements. If repeated interaction or exogenous enforcement are unavailable, societies often solve this problem via institutions that rely on group, rather than individual, reputation. Groups can employ two mechanisms to...