VERGNAUD, Jean-Christophe; WILLINGER, Marc; … - Bureau d'Économie Théorique et Appliquée (BETA), … - 1999
subjects’ choices generate a negative externality, while in the public good experiment, the actions of the other subjects … create a positive externality. In this paper we designed an experiment which allows us to compare the level of … overcontribution of the two contexts. Our experiment shows that subjects in the positive context contribute (significantly) more to the …