The analysis of common goods needs to look very carefully at the characteristics of the goods and of the social situations of their provision. Different characteristics lead to different strategic constellations and therefore to different opportunities for institutional solutions to the problems...

'Until not much more than 20 years ago, economists frequently lamented the fact that they were limited in their empirical analyses to statistical assessments of market behavior, because controlled economic experiments were (thought to be) infeasible, unethical, or both. Much has changed in the...