The monetary policies of the Federal Reserve Bank during the 2010s led to the short-term interest rates—the rates banks pay to borrow money from one another—hovering around zero percent. The near zero rates meant money market fund investors saw returns significantly lower, compared to those in the prior decades. Further, with the tightening of regulations after the 2008 financial crisis, the number of investable securities grew smaller.
<>The crisis, which eventually became the catalyst for the Emergency Economic Stabilization Act of 2008, almost developed into a run on money funds: the redemptions caused a drop in demand for commercial paper, preventing companies from rolling over their short-term debt, potentially causing an acute liquidity crisis: if companies cannot issue new debt to repay maturing debt, and do not have cash on hand to pay it back, they will default on their obligations, and may have to file for bankruptcy. Thus there was concern that the run could cause extensive bankruptcies, a debt deflation spiral, and serious damage to the real economy, as in the Great Depression. >