We use a sequential prisoner's dilemma game to measure the other-regarding behavior in samples from three related populations in the upper Midwest of the United States: 100 college students, 94 non-student adults from the community surrounding the college and 1,069 adult trainee truckers in a...

We measure the other-regarding behavior in samples from three related populations in the upper Midwest of the United States: college students, non-student adults from the community surrounding the college, and adult trainee truckers in a residential training program. The first two groups were...

Previous studies have shown that an oath can reduce lying at an individual level. Can oaths reduce lying in groups, a context where the prevalence of lying is typically higher? Results from a lab experiment reveal that the impact of an oath on lying in a group context depends on the incentive...