Bernanke Strikes Again;
April 21, 2011 "Information Clearing House" -- -Interest rates are the Fed's main tool for implementing policy, but when interest rates are already at zero and activity is still weak, then the Fed may try other unconventional strategies to rev up the economy. Quantitative Easing (QE) is one such strategy. In practice, it works like this; the Fed purchases some type of financial asset (stocks, bonds, mortgage-backed securities) which adds to the money supply thereby creating (in effect) negative interest rates. The Fed believes that this "monetary easing" can stimulate the economy.