British Prime Minister Gordon Brown told the House of Commons earlier in the day that the meeting of leading and emerging economies in London would tackle "major questions of economic action."
Kremlin aide Arkady Dvorkovich told reporters in Moscow: "We hope that the summit in London will help continue the work begun in Washington, in particular on the theme of international financial markets, and also on a new international financial architecture. We hope that specific decisions will be made on a range of key issues."
During the Washington summit on November 15, leaders of the G20, along with World Bank and International Monetary fund officials, agreed on several broad goals to avert major economic collapse and to revive global growth.
The G20 countries, comprising 19 of the world's largest economies plus the European Union, account for 90% of the global economy. Britain will take over the chairmanship of the G20 in 2009.
Brown told parliament on Wednesday: "I have spoken to the incoming U.S. administration and President-elect Obama expects to come to Britain at that time."
