World stocks edged lower on Wednesday after a strong quarterly rally, as investors awaited remarks from Fed Chair Kevin Warsh. The MSCI World Price Index slipped 0.1% after its strongest quarter in around six years, while U.S. and European shares also declined slightly. Euro zone inflation eased more than expected to 2.8% in June, cooling bets on further ECB rate hikes. Oil prices stayed near pre-war levels amid signs of continuing Iran-U.S. contacts, and the yen hit fresh 40-year lows against the dollar, keeping traders alert for possible Japanese intervention.