Cooperating and trusting behavior may be explained by preferences over social outcomes (people care about others, are unselfish and help- ful), or attitudes to work and social responsibilities (plans have to be carried out, norms have to be followed). If the first hypothesis is true, Agreeable-...

Cooperating behavior may be fostered by personality traits reflecting either favorable inclination to others or willingness to comply with norms and rules. We test the relative importance of these two factors in an experiment where subjects provide real mental effort in two treatments with...

Cooperating behavior may be fostered by personality traits re ecting either favorable inclination to others or willingness to comply with norms and rules. We test the relative importance of these two factors in an experiment where subjects provide real mental effort in two treatments with...