Fed Chairman Ben Bernanke's bold policy response to the 2007-2009 financial crisis sent shocks through the already rattled financial markets and global economy. As his eight-year term atop the U.S. central bank draws to a close in January 2014, he leaves deep footprints in everything from the battered U.S. workforce to global stock prices to the cost of borrowing in emerging markets. Here's a by-the-numbers look at what transpired over the era of rock-bottom interest rates and three rounds of aggressive "quantitative easing" (QE1, QE2, and QE3).
In quantitative easing, the Fed has bought Treasury and mortgage-backed bonds to drive down borrowing costs and encourage investing, hiring and economic growth. During Operation Twist, the Fed swapped out shorter-dated debt for longer-dated bonds to try to force long-term interest rates, like those on home mortgages, even lower.