The G-20 has called for a review of the scope of financial regulation. This call reflects concern that the coverage of prudential regulation has been too narrow. A discussion of extending the regulatory perimeter should, therefore, weigh carefully the experience of the past two years against...

The financial crisis that began in 2007 brought much of the global economy to its knees and nearly triggered another Great Depression. The financial storm gradually died down in 2009, at least in the United States, but even six years after that, much of the world had yet to fully recover from...