One approach to urban areas emphasizes the existence of certain immutable relationships, such as Zipf's or Gibrat's Law. An alternative view is that urban change reflects individual responses to changing tastes or technologies. This paper examines almost 200 years of regional change in the U.S....

Introduction / Edward L. Glaeser, Tano Santos, and E. Glen Weyl -- Stochastic compounding and uncertain valuation / Lars Peter Hansen and José A. Scheinkman -- The good banker / Patrick Bolton -- How to implement contingent capital / Albert S. Kyle -- Bankruptcy laws and collateral regulation:...