G-20 to Steal $1 Trillion More for IMF, World Bank

Brown also says the 20 countries at the summit will enact common policies to crack down on tax havens, regulate hedge funds, and rebuild trust in the financial system to "prevent a crisis such as this from happening again."

He says the G-20 nations will also give emerging powers a greater say in the world economy.

Brown did not outline any new fiscal measures but says that the stimulus packages already announced by major nations have already been the biggest in history.