Congressional Research Service. March 13, 2012.
The Federal Reserve’s (Fed’s) current statutory mandate calls for it to “promote effectively the goals of maximum employment, stable prices, and moderate long-term interest rates.” Some economists have argued that this mandate should be replaced with a single mandate of price stability. Often the proposal for a single mandate is paired with a more specific proposal that the Fed should adopt an inflation target. Under an inflation target, the goal of monetary policy would be to achieve an explicit, numerical target or range for some measure of price inflation. Inflation targets could be required by Congress or voluntarily adopted by the Fed as a way to pursue price stability, or a single mandate could be adopted without an inflation target.
http://www.fas.org/sgp/crs/misc/R41656.pdf [PDF format, 26 pages].