All of the Federal Reserve's monetary policy decisions are guided by our dual mandate to promote maximum employment and stable prices....
The open-ended nature of these new asset purchases, together with their explicit conditioning on improvements in labor market conditions, will provide the Committee with flexibility in responding to economic developments and instill greater public confidence that the Federal Reserve will take the actions necessary to foster a stronger economic recovery in a context of price stability. An easing in financial conditions and greater public confidence should help promote more rapid economic growth and faster job gains over coming quarters.
As I have said many times, however, monetary policy is not a panacea. Although we expect our policies to provide meaningful help to the economy, the most effective approach would combine a range of economic policies and tackle longer-term fiscal and structural issues as well as the near-term shortfall in aggregate demand....
To conclude, the Federal Reserve is providing additional monetary accommodation to achieve its dual mandate of maximum employment and price stability. This policy not only helps strengthen the U.S. economic recovery, but by boosting U.S. spending and growth, it has the effect of helping support the global economy as well.Board of Governors of the Federal Reserve System
Speech: U.S. Monetary Policy and International Implications
Chairman Ben S. Bernanke
At the "Challenges of the Global Financial System: Risks and Governance under Evolving Globalization," A High-Level Seminar sponsored by Bank of Japan-International Monetary Fund, Tokyo, Japan