We examine conditions under which group consumption is likely to involve informal and tacit reciprocity agreements rather than formal contracts and the price system. Our model shows that informal reciprocity agreements are more likely to be used when transaction costs of formal agreements are...

Experimental and observational studies have highlighted the importance of agents being conditionally cooperative when facing a social dilemma. We formalize this mechanism in a theoretical model that portrays a small community having joint access to a common pool resource. The diffusion of norms...

We study the behavior of individuals coming from different geographic regions of Italy, in a same public good game. We confirm previous findings according to which, faced with the same incentives and experimental conditions, Southern citizens exhibit a lower propensity to cooperate than Northern...

Questions remain as to whether results from experimental economics games are generalizable to real decisions in non-laboratory settings. Furthermore, important questions persist about whether social capital can help solve seemingly missing credit markets. I conduct two experiments, a Trust game...