This video will explain the definition of quantitative easing. Quantitative easing (QE) is an unconventional monetary policy used by central banks to quickly increase the domestic money supply and spur economic activity. Quantitative easing boosts money supply by having a country's central purchase longer-term securities or other government bonds from the open market. Quantitive easing is typically implemented when interest rates are already near zero. To learn more about quantitive easing, watch this video.