G20 faces credibility test on markets

PITTSBURGH (Reuters) - The Group of 20 rich and developing economies, fresh from a triumphant show of unity at Pittsburgh, faces months of deal-making and communication to markets that will test its credibility as the premier global forum for economic cooperation.

"It worked," G20 leaders declared on Friday of their response to the global financial crisis. "Our forceful response helped stop the dangerous, sharp decline in global activity and stabilize financial markets," they said in the final summit communique.