WASHINGTON - Federal Reserve chairman Kevin Warsh did not submit an interest-rate prediction as part of the central bank’s quarterly economic projections on Wednesday, spelling changes ahead for what has become a key guidepost for investors on monetary policy.

Over the past few years, new Federal Reserve (Fed) Chair Kevin Warsh has repeatedly addressed the U.S. central bank's balance sheet, called for more...

Federal Reserve Chairman Kevin Warsh leads his first policy session, sending ripples through the investment community eager for clues on monetary policy shifts. With a preference…