We use time-series methods to estimate a simple aggregate supply and demand model in order to analyse the comparative performance of fixed and flexible exchange rate systems and test competing hypotheses designed to explain shifts between exchange rate regimes. The paper provides a coherent...

This paper argues that the U.S. financial crisis is a new type of crisis: a "financial black hole." Financial black holes are characterized by the breaking-up of credit market discipline and the large-scale financing of negative NPV projects. In a theoretical model, we explain how the...