[3] As hosts, the British Treasury produced an extended agenda pamphlet proposing the issues to be addressed at the London Summit.

To restore global growth as quickly as possible, the participants decided to approve coordinated and decisive actions to stimulate demand and employment.

The members also committed themselves to maintain the supply of credit by providing more liquidity and recapitalising the banking system, and to implement rapidly the stimulus plans.

[8] They agreed to control credit-rating agencies and their compliance with the Code of Conduct of the International Organization of Securities Commissions; off-balance-sheet vehicles; credit-derivatives market; and non-cooperative territories.

On 26 March 2009 the Czech Prime Minister Mirek Topolanek strongly criticised the economic expansion policies of US President Barack Obama.

During a photograph she lightly rebuked the Italian Prime Minister Silvio Berlusconi for shouting too loudly in an effort to attract the attention of United States President Barack Obama.

[17] The summit proper began on the morning of 2 April and took place at the Excel Centre in Custom House, east London.

These ranged from disquiet over economic policy, anger at the banking system and bankers remuneration and bonuses, the continued war on terror and concerns over climate change.

Ian Tomlinson, a newsagent in the City of London, died within a police cordon of the G20 Meltdown protest near the Bank of England.

[22] The London summit was a preliminary step in the process through which the G20 evolved to become "the premier forum for discussing, planning and monitoring international economic co-operation".

[23] The G20 leaders reached an agreement which, in principle, provides US$1.1 trillion to various programs designed to improve international finance, credit, trade, and overall economic stability and recovery.

[24] Programs include:[25] An agreement was also reached to attempt to bring wider global regulation of hedge funds and credit-rating agencies, a common approach to cleaning up bank toxic assets.

Commenting on the summit, Robert Hormats, vice-chairman of Goldman Sachs International, said "The U.S. is becoming less dominant while other nations are gaining influence.