Global stock indexes skid as U.S. government shutdown looms

NEW YORK (Reuters) - World stock markets continued a week-long sell-off on Friday as the threat of a U.S. government shutdown and comments from a top White House trade adviser casting doubt that a breakthrough on trade tensions with China can be achieved compounded investor anxiety that global economic growth is slowing.MSCI's index of global equities fell 1.5 percent, dragged down by broad declines in Europe and Asia. On Wall Street, U.S. stocks initially moved higher after Commerce Department..