Güth, Werner Max Planck Institute for Research on Collective Goods, Max Planck Society;
Sutter, Matthias Max Planck Institute for Research on Collective Goods, Max Planck Society;
Güth, W., Levati, M. V., Sutter, M., & van der Heijden, E. (2007). Leading by example with and without exclusion power in voluntary contribution experiments. Journal of Public Economics, 91(5/6), 1023-1042. doi:10.1016/j.jpubeco.2006.10.007.