. To this end, we conduct a repeated public goods experiment with and without punishment using samples from the laboratory … and the online platform Amazon Mechanical Turk. We chose to replicate this experiment because it is long and logistically … interactive experimentation. We find that basic behavioral patterns of cooperation and punishment in the laboratory are replicable …

Evolutionary theory reveals that punishment is effective in promoting cooperation and maintaining social norms …. Although it is accepted that emotions are connected to punishment decisions, there remains substantial debate over why humans … use costly punishment. Here we show experimentally that constraints on emotion expression can increase the use of costly …

that the specific punishment technology adopted plays in this context, and test to what extent punishing behavior can be … truly attributed to negative emotions. We find that a large part (around 70%) of the punishment behavior observed in … previous PTTG studies is explained by the technology of punishment adopted instead of negative emotions. Once this effect is …

, decentralized punishment. We elicit punishment decisions both in isolation and after providing information about actual peers …' punishment. We find evidence that the amount of punishment that is chosen by third-parties is influenced by their beliefs about … the amount of their peers' punishment. Moreover, the larger the difference between third-parties' beliefs about the level …