We report experimental results on voluntary contributions to public-goods provision from situations in which parties can create institutions to impose a certain contribution level on its members. We focus on a public-goods game where the joint decisions inside the institution are made based on...

This study explores the motivations behind costly punishment in social dilemmas, specifically focusing on reciprocity and inequality aversion. To distinguish these motivations, we introduce uncertainty into the payoff function of a public goods game, preventing participants from predicting...