This paper provides laboratory evidence on the efficiency-enhancing properties of the Tiebout model as a decentralized system of public goods provision. Tiebout (1956) shows that if a sufficient number of local communities exist to accommodate different types of preferences, individuals sort...

We develop a model of policy experimentation in federal systems in which heterogeneous districts choose both whether to experiment and the policies to experiment with. The prospect of informational spillovers implies that in the fi rst best the districts converge in their policy choice....