Ben S. Bernanke, former chairman of the Federal Reserve, told an audience at the London School of Economics on Wednesday evening that emerging markets represented the one risk to financial stability today. STORIES FROM OUR ADVERTISERS In a conversation with Professor Erik Berglof, Mr. Bernanke assured students and faculty members that the financial system was “a lot safer” today as banks have more capital and are subject to greater regulatory oversight. But he said that emerging markets and the way they react to rising interest rates in the United States were “a risk area,” though it was hard to know the magnitude ... (full story)