Where Is the Volcker Rule?

By SIMON JOHNSON

Three years ago, a financial crisis threatened to bring down the United States economy and to spread economic disaster around the world. How far have we come in preventing any kind of recurrence? And will the much-discussed Volcker Rule – attempting to limit the risks that big banks can take – play a positive role as we move forward?

Bad loans were the primary cause of the 2007-8 financial debacle. When the full extent of the problems with those loans became apparent, there was a sharp fall in the values of all securities that had been constructed based on the underlying mortgages – and a collapse in the value of related bets that had been made using derivatives.