There's also a new stimulus of sorts keeping money moving through the economy: technology. Big tech outfits like FAANG stock Amazon ( AMZN 2.21% ) are heavy spenders to promote growth rather than concerning themselves with maximizing profits. Smaller tech firms intentionally spend in excess of what they make in sales (using up some cash on their balance sheet) on research, development, and sales and marketing. The low interest rate environment is boosting this rate of heavy investment into tech. Hundreds of billions of dollars are being spent each year in this way and that is also keeping money circulating in the economy.