Entrusting the power to punish to a central authority is a hallmark of civilization. We study a collective action dilemma in which self‐interest should produce a sub‐optimal outcome absent sanctions for non‐cooperation. We then test experimentally whether subjects make the theoretically...

The sanctioning of norm-violating behavior by an effective formal authority is an efficient solution for social dilemmas. It is in the self-interest of voters and is often favorably contrasted with letting citizens take punishment into their own hands. Allowing informal sanctions, by contrast,...

According to economists, severe legal sanctions deter violations of the law. According to legal scholars, people may obey law backed by mild sancions because of norm-activation. We experimentally investigate the effects of mild and severe legal sanctions in the provision of public goods. The...

Economists long considered money illusion to be largely irrelevant. Here we show, however, that money illusion has powerful effects on equilibrium selection. If we represent payoffs in nominal terms, choices converge to the Pareto inefficient equilibrium; however, if we lift the veil of money by...