WASHINGTON -- Leaders from major advanced and developing countries pledged Saturday to broaden efforts to contain the financial crisis and revive the world economy, though they cautioned against policies that could be counterproductive to either domestic economies or the global system as a whole.

U.S. President George W. Bush said Saturday the Group of 20 financial summit was successful and marks the beginning of a dialogue among world leaders to resolve the financial crisis.

G-20 leaders gathering in Washington to address the worst crisis since the Great Depression vowed bold action and urged individual countries to use fiscal and monetary policies "as deemed appropriate" to support growth and stability.

"Against this background of deteriorating economic conditions worldwide, we agreed that a broader policy response is needed, based on closer macroeconomic cooperation, to restore growth, avoid negative spillovers and support emerging market economies and developing countries," the final communique said. (Read the full statement)