A share trader reacts as he watches the opening figures of the New York stock exchange during afternoon trading at Frankfurt's stock exchange August 9, 2011. The global economy stumbled deeper into crisis as stock markets slumped further on Tuesday, with investors losing confidence that the United States and Europe can rein in their debt burdens quickly and avert a double-dip recession. REUTERS/Kai Pfaffenbach (GERMANY - Tags: BUSINESS POLITICS)