The Federal Reserve will deliver more interest rate hikes next year even as the economy slips towards a possible recession, Fed Chair Jerome Powell said on Wednesday, arguing that a higher cost would be paid if the U.S. central bank does not get a firmer grip on inflation. Recent signs of slowing inflation have not brought any confidence yet that the fight has been won, Powell told reporters after the Fed’s policy-setting committee raised its benchmark overnight interest rate by half a percentage point and projected it would continue rising to above 5% in 2023, a level not seen since a steep economic downturn in 2007.