5. Encourages debt. Another key worry about quantitative easing is that the increased money supply and low interest rates encourage additional borrowing by both consumers and businesses. While some debt can help stimulate an economy, wanton loans and excessive debt can further exacerbate an already fragile one. Moreover, quantitative easing can lead to an increased government deficit as was the case with the U.S. in 2010 when it actually reached itsdebt ceiling.