You may not think much about the federal funds rate on a daily basis, but this key number impacts many areas of your financial life and the economy as a whole. The Federal Reserve — the country’s central bank — periodically adjusts its target rate to keep the economy running smoothly and consumer prices in check. When the federal funds rate moves up or down, so do the interest rates on bank accounts and loans. In other words, changes in the Fed’s rate impact how much your savings can grow and how much you ...