By Naomi Rovnick LONDON (Reuters) -Wall Street stock futures surged, the dollar rallied and gold prices slumped on Monday as U.S. and Chinese officials pledged to slash reciprocal tariffs in a move that swept trade war fears out of global markets,

Wall Street stock futures jumped and the dollar firmed against safe haven peers on Monday as signs of progress in U.S.-China trade talks boosted hopes a global recession might be avoided, though details of any deal were still to come.