1. Computational Science Lab, Informatics Institute, University of Amsterdam , 1098 XH, Amsterdam , The Netherlands
2. School of Public and International Affairs, Princeton University , Princeton, NJ 08544 , USA
3. Department of Psychology, Northeastern University , Boston, MA 02115 , USA
4. School of Public and Urban Affairs, Northeastern University , Boston, MA 02115 , USA
5. Doerr School of Sustainability, Standford University , Stanford, CA 94305 , USA
6. POLDER, Institute for Advanced Study, University of Amsterdam , 1012 GC, Amsterdam , The Netherlands