Sutter, Matthias; Lindner, Peter; Platsch, Daniela - 2009 - This version: 8th April 2009
have positive effects on cooperation rates, compared to a treatment where no third party is involved. Third-party reward is … more effective in increasing cooperation than third-party observation. However, rewards are given too late to prevent a … steady downward trend of cooperation rates. -- social norms ; third-party reward ; third-party observation ; prisoner …