Europe’s banking system has been in a state of systemic fragility since 2007-08. The current phase is marked by a sequence of interactions between sovereign problems and banking problems, resulting in gradual contagion to more countriesand more asset classes. The banking and sovereign crises...

We review the competing explanations of the 2007-2008 global crisis, recall how governments around the world had to depart from established policy stances, and reflect on the legacy of the crisis both in terms of future challenges and changes in policy doctrine. The G-20 has addressed important...