Attending: President Cristina Fernandez de Kirchner
Argentina's gross domestic product per capita is $13,100. It suffered from recurring economic crises during much of the 20th century.
Attending: Prime Minister Kevin Rudd
Australia has a GDP per capita of $37,300. The country is considered to have a strong economy with a per capita GDP on par with dominant West European economies.
Attending: President Luis Inacio Lula
Brazil has a GDP per capita of $9,500. Brazil's economy largely outweighs that of all other South American countries and the country is seeking to expand its presence in world markets.
Attending: Prime Minister Gordon Brown
The United Kingdom has a GDP per capita of $35,000. The country is a leading trading power and financial center of Western Europe.
Attending: Prime Minister Stephen Harper
Canada has a GDP per capita of $38,600. Canada is one of the U.S.'s largest foreign suppliers of energy, including oil, gas, uranium and electric power.
Attending: President Hu Jintao
China has a GDP per capita of $5,400. Facing its own economic slowdown, China announced a stimulus package of $586 billion this month.
Attending: President Nicolas Sarkozy
France has GDP per capita of $32,600. It is the most-visited country in the world and maintains the third-largest income in the world from tourism.
Attending: Chancellor Angela Merkel
Germany has a GDP per capita of $34,100. After a long period of sluggish growth and chronically high unemployment, Germany saw stronger economic movement toward the end of 2007.
Attending: Prime Minister Manmohan Singh
India has a GDP per capita of $2,600. Its economy encompasses traditional farming, modern agriculture, handicrafts, a wide range of industries and a multitude of services.
Attending: President Susilo Bambang Yudhoyono
Indonesia has a GDP per capita of $3,600. Its stock market was been one of the three best performers in the world in 2006 and 2007.
Attending: Prime Minister Silvio Berlusconi
Italy has a GDP per capita of $30,900. In 2007, the country's official public debt exceeded 100 percent of its GDP.
Attending: Prime Minister Tara Aso
Japan has a GDP per capita of $33,500. Its large government debt, which totals more than 170 percent of its GDP, and its aging population are considered two serious long-term issues for its economy.
Attending: President Felipe Calderon
Mexico has a GDP per capita of $12,400. Mexico is partner to 12 free trade agreements with more than 40 countries.
Attending: President Dmitry Medvedev
Russia has a GDP per capita of $14,800. During former President Vladimir Putin's first administration, a number of important reforms were implemented in the areas of tax, banking, labor and land codes.
Attending: King Abdullah Bin Abdul Aziz
Saudi Arabia has a GDP per capita of $19,800. The country has an oil-based economy with strong government controls over major economic activities.
Attending: President Kgalema Motlanthe
South Africa has a GDP per capita of $9,700. It is considered to be an emerging market with an abundant supply of natural resources.
Attending: President Lee Myung-Bak
South Korea has a GDP per capita of $25,000. In the face of rising oil prices, inflation and unemployment have increased in the country in recent years.
Attending: Prime Minister Recep Tayyip Erdogan
Turkey has a GDP per capita of $12,000. Its economy is a complex mix of modern industry along with a traditional agriculture sector.
Attending: President George W. Bush
The United States has a GDP per capita of $45,800. The U.S. unemployment rate jumped to 6.5 percent in October, its highest reading in 14 years.
Source: CIA World Factbook; GDP based on 2007 estimates