The Chairman of the United States Federal Reserve, Benjamin Bernanke, has no doubts that his main job is to drive economic and job growth.
To do so he will keep interest rates at their current level (between 0.0 and 0.25%) until 2014, despite the risks that this policy entails.
He made this decision based on predictions that the United States economy would improve, but not significantly enough to reach 2% or 3% growth or lower the unemployment rate by much.
The predictions are positive, but not enough for the Fed to lower its guard. Bernanke, well aware of the crash of '29 and its consequences, understands that now more than effort he needs to make an effort to stimulate growth.