Innovations in government produce positive externalities for other jurisdictions. Theory therefore predicts that local government will tend to produce a lower than optimal amount of innovation, as officials will prefer to free-ride on innovation by others. As Susan Rose-Ackerman observed in...

Decentralised experimentation and mutual learning of public policies is seen as one of the important advantages of federal systems (Oates: laboratory federalism). Based upon Hayekian ideas of the advantages of decentralised experimentation (as a discovery procedure), we analyse the long-term...