Leaders of the world's largest economies have reached an agreement to tackle the global financial crisis with measures worth $1.1 trillion (£681bn).
To help countries with troubled economies, the resources available to the International Monetary Fund (IMF) will be tripled to $750bn.
There will also be sanctions against secretive tax havens and tougher global financial regulation.
And the G20 has committed about $250bn to boost global trade.
US President Barack Obama said the summit could mark a "turning point" in the pursuit of economic recovery and made progress in reforming a "failed regulatory system".
The deal
On behalf of the G20, Mr Brown announced the following steps:
Bankers' pay and bonuses will be subject to stricter controls
Leaders of the world's largest economies have reached an agreement to tackle the global financial crisis with measures worth $1.1 trillion (£681bn).
To help countries with troubled economies, the resources available to the International Monetary Fund (IMF) will be tripled to $750bn.
There will also be sanctions against secretive tax havens and tougher global financial regulation.
And the G20 has committed about $250bn to boost global trade.
US President Barack Obama said the summit could mark a "turning point" in the pursuit of economic recovery and made progress in reforming a "failed regulatory system".
The deal
On behalf of the G20, Mr Brown announced the following steps:
Bankers' pay and bonuses will be subject to stricter controls
Gordon Brown announces the G20 deal
A new Financial Stability Board will be set up to work with the IMF to ensure co-operation across borders and provide an early warning mechanism for the financial system
* There will be greater regulation of hedge funds and credit ratings agencies * A common approach to cleaning up banks' toxic assets has been agreed * The world's poorest countries will receive $100bn extra aid * G20 countries are already implementing the biggest economic stimulus "the world has ever seen" - an injection of $5tn by the end of next year.