The U.S. Federal Reserve will end its tightening cycle after a 25-basis-point hike at each of its next two policy meetings and then likely hold interest rates steady for at least the rest of the year, according to most economists in a Reuters poll. Fed officials broadly agree the U.S. central bank should slow the pace of tightening to assess the impact of the rate hikes. The Fed raised its benchmark overnight interest rate by 425 basis points last year, with the bulk of the tightening coming in 75- and 50-basis-point moves.