In this paper, we study the effects of social influence on third-parties' decisions whether to engage in costly, decentralized punishment. We elicit punishment decisions both in isolation and after providing information about actual peers' punishment. We find evidence that the amount of...

We designed a natural-field experiment in the context of local public transportation to test whether rewards in the form of lottery prizes coupled with traditional sanctions efficiently reduce free-riding. We organized a lottery in a medium-size Italian city the participation in which is linked...

We study how distributional preferences are affected by a major property rights reform that transformed informal use-rights over land traditionally characterizing rural Beninese villages in a system akin to private ownership. The design combines the randomized control-trial implementation of the...

We designed a natural-field experiment in the context of local public transportation to test whether rewards in the form of lottery prizes coupled with traditional sanctions efficiently reduce free-riding. We organized a lottery in a medium-size Italian city the participation in which is linked...