1. Department of Psychology and Cognitive Science University of Trento Rovereto Italy
2. Institute for Cognitive Sciences and Technologies (CNR, Italy) Rome Italy
3. Department of Psychology University of Stockholm Stockholm Sweden
4. Department of Psychological and Brain Sciences University of Massachusetts Amherst Amherst USA
5. Department of Human and Social Sciences University of Wuppertal Wuppertal Germany
6. Max Planck Institute for Research on Collective Goods Bonn Germany
7. School of Psychology Queen's University Belfast Belfast UK