QE2, the Fed's $600 billion Treasury purchase in 2010, was expected to stimulate the economy by getting banks lending again, reduce the risk of deflation, and decrease unemployment. But its real effect on the struggling economy has been minimal at best.
As acknowledged by the Federal Reserve's Federal Open Market Committee, there is a "continuing weakness in overall labor market conditions, and the unemployment rate remains elevated." So much for QE2.
Now the Fed has a new plan—dubbed "Operation Twist"—and this one will cost $400 billion.
In response to continued slow economic growth, the Federal Reserve announced last week that it plans to purchase "$400 billion of Treasury securities with remaining maturities of 6 years to 30 years and to sell an equal amount of Treasury securities with remaining maturities of 3 years or less" by the end of June 2012. In other words, the Fed will be selling $400 billion worth of shorter-term Treasury securities and using the proceeds from those sales to purchase longer-term Treasury securities.
The FOMC expects this program to "put downward pressure on longer-term interest rates and help make broader financial conditions more accommodative." The Fed purchase is intended to raise the demand for Treasuries, which should decrease the Treasury yield curve—allowing the government to pay back only the bonds' face value plus the interest rate.
Although the primary desired effect of Operation Twist is to increase short-term interest rates and decrease long-term rates, the Fed also hopes to increase investment in corporate bonds and other fixed-income securities. While this could potentially translate into continued low interest rates and even encourage job creation, it's unlikely to have any real effect on the sour economy.