Sutter, Matthias Max Planck Institute for Research on Collective Goods, Max Planck Society;
https://doi.org/10.1177/0022002707302796 (Any fulltext)
Levati, M. V., Sutter, M., & van der Heijden, E. (2007). Leading by Example in a Public Goods Experiment with Heterogeneity and Incomplete Information. Journal of Conflict Resolution, 51, 793-818.