American technological creativity is geographically concentrated in areas that are generally distant from the country's most persistent pockets of joblessness. Could a more even spatial distribution of innovation reduce American joblessness? Could Federal policies disperse innovation without...

Empirical experience and theory both suggest that policy reforms can be aborted or reversed if they lack sufficient credibility, One reason for such credibility problems is the legitimate doubt regarding how serious the government really is about :he reform process. This paper considers a...

Historically, urban growth required enough development to grow and transport significant agricultural surpluses or a government effective enough to build an empire. But there has been an explosion of poor mega-cities over the last thirty years. A simple urban model illustrates that in closed...