Men, women, and leadership centralization in groups over time

The authors propose a model for predicting the emergence of group norms from the demographic composition of groups. They use this model to study gender and leadership centralization in groups over time. Results from 2 longitudinal studies were consistent with their predictions: (a) Women, more than men, preferred equality norms in groups; (b) all-male and majority-male groups had relatively centralized leadership structures; (c) all-female groups had relatively decentralized leadership structures; and (d) balanced and majority-female groups were relatively centralized at the onset of group interaction but decreased in centralization over time.