New 3% to 3.25% range is highest since 2008
Stock prices tumbled and bond yields rose as many investors feared a more aggressive Federal Reserve
Central bank official confident U.S. inflation will fall to 2%
Unemployment rose to 3.7%, from 3.5% in July
Powell's message may disappoint investors who were hoping for a signal that the Fed might soon moderate its rate increases
Wednesday's report increased hope that the modest slowdown might enable the Fed to slow the pace of its rate increases
The 75-basis-point increase brings the key rate to the highest level since 2018
The U.S. Federal Reserve's rate hikes aren't suited to address all the causes of high inflation, however
The potential increase depends on robust consumer demand
Esther George of the Kansas City Fed sounded a more cautionary note in a speech Monday