What is quantitative easing? Hasn’t the Fed already tried quantitative easing? When? What were the results?

  1. What is quantitative easing?
  2. Hasn’t the Fed already tried quantitative easing? When? What were the results? Discuss the method of quantitative easing used by the Federal Reserve during the most recent U.S. recession, including any criticisms of this action.
  3. Did QE3 help the economy?