Monetary policy measures taken by the Federal Reserve as a response to the 2007-09 financial crisis and subsequent economic conditions led to a large increase in the level of outstanding reserves. The Federal Open Market Committee (FOMC) has a range of tools to control short-term market rates in...

Prior to the 2007-2008 financial crisis, excess reserves in the U.S. banking system were scarce. After the financial crisis and up until early 2018, excess reserves were abundant. In this article, the authors document, analyze, and explain the differences in the performance of the federal funds...