Fed cuts rates by a half point

The Federal Reserve lowers the target on a key short-term interest rate for the first time in four years from 5.25% to 4.75%

September 18 2007: 2:18 PM EDT

NEW YORK (CNNMoney.com) -- The Federal Reserve cut the target on a key short-term interest rate by a half of a percentage point Tuesday to 4.75%, further acknowledgment from the central bank that the mortgage meltdown plaguing Wall Street and Main Street could have a negative impact on the economy.

The cut to the federal funds rate, the first since June 2003, was widely anticipated by investors and followed a surprise cut to the Fed's discount rate on August 17. The only question was whether the Fed would lower the federal funds rate by 25 basis points or 50 basis points. (There are 100 basis points in a full percentage point.)

The federal funds rate, an overnight lending rate that banks charge each other, is important since it influences the amount of interest consumers must pay for various types of debt, such as credit cards, home equity lines of credit and auto loans. The rate cut should help some beleaguered home borrowers who are set to see monthly payments on adjustable rate mortgages rise later this year.