A trader works on the floor of the New York Stock Exchange shortly after the market openingBy Rodrigo Campos NEW YORK (Reuters) – U.S. stocks edged decrease on Tuesday as the Federal Reserve prepared to begin its closing coverage-environment assembly of the yr. Although many available in the market expect the Fed to begin to wind down its market-pleasant $85 billion a month in asset purchases in March, some are having a bet on an prior tapering of stimulus after a up to date string of higher-than-expected economic knowledge. U.S. client prices had been flat in November, however a jump back in the annual inflation fee from a 4-12 months low will most definitely provide the Fed cover to begin the taper. The Fed has mentioned its current policy is data-dependant, and a few market participants consider the U.S. crucial bank will improve its estimates for economic job after a two-day assembly that’s set to begin in a while Tuesday.