on cooperative behavior. In a survey experiment with a representative sample of the Swedish population (N = 1,828), we … mode or were induced to rely either on emotion or reason. Cooperation was measured across a series of commonly used and … that average cooperation rates increased when emotions were induced rather than reason. At the trait level, our results …

We show in a public goods experiment on three continents that conditional cooperation is a universal behavioral ….S.A. than anywhere else. -- conditional cooperation ; public goods ; experiment … regularity. Yet, the number of conditional cooperators and the extent of conditional cooperation are much higher in the U …