G20

The G20 or Group of 20 is an intergovernmental forum comprising 19 sovereign countries, the European Union (EU), and the African Union (AU). It works to address major issues related to the global economy, such as international financial stability, climate change mitigation and sustainable development, through annual meetings of heads of state and heads of government.

The sovereign states of the G20 (without its international members, like the EU or AU) account for around 85% of gross world product (GWP), 75% of international trade, 56% of the global population, and 60% of the world's land area. Including the EU and AU, the G20 comprises 78.9% of global population and 83.9% of global CO₂ emissions from fossil energy.

The G20 was founded in 1999 in response to several world economic crises. Since 2008, it has convened at least once a year, with summits involving each member's head of government or state, finance minister, or foreign minister, and other high-ranking officials; the EU is represented by the European Commission and the European Central Bank. Other countries, international organizations, and nongovernmental organizations are invited to attend the summits, some permanently. The African Union joined as the 21st member at the 2023 summit in India and was officially represented at the 2024 summit in Brazil.

In its 2009 summit, the G20 declared itself the primary venue for international economic and financial cooperation. The group's stature has risen during the subsequent decade, and it is recognised by analysts as exercising considerable global influence; it is also criticised for its limited membership, lack of enforcement powers, and for the alleged undermining of existing international institutions. Summits are often met with protests, particularly by anti-globalization groups.

The G20 is the latest in a series of post–World War II initiatives aimed at international coordination of economic policy, which include institutions such as the "Bretton Woods twins", the International Monetary Fund and the World Bank, and what is now the World Trade Organization.

The G20 was foreshadowed at the Cologne summit of the G7 in June 1999, and formally established at the G7 Finance Ministers' meeting on 26 September 1999 with an inaugural meeting on 15–16 December 1999 in Berlin. Canadian finance minister Paul Martin was chosen as the first chairman and German finance minister Hans Eichel hosted the meeting.

A 2004 report by Colin I. Bradford and Johannes F. Linn of the Brookings Institution asserted the group was founded primarily at the initiative of Eichel, the concurrent chair of the G7. However, Bradford later described then-Finance Minister of Canada (and future Prime Minister of Canada) Paul Martin as "the crucial architect of the formation of the G20 at finance minister level", and as the one who later "proposed that the G20 countries move to leaders level summits". Canadian academic and journalistic sources have also identified the G20 as a project initiated by Martin and his American counterpart then-Treasury Secretary Larry Summers. All acknowledge, however, that Germany and the United States played a key role in bringing their vision into reality.^{[citation needed]}

Martin and Summers conceived of the G20 in response to the series of massive debt crises that had spread across emerging markets in the late 1990s, beginning with the Mexican peso crisis and followed by the 1997 Asian financial crisis, the 1998 Russian financial crisis, and eventually impacting the United States, most prominently in the form of the collapse of the prominent hedge fund Long-Term Capital Management in the autumn of 1998. It illustrated to them that in a rapidly globalizing world, the G7, G8, and the Bretton Woods system would be unable to provide financial stability, and they conceived of a new, broader permanent group of major world economies that would give a voice and new responsibilities in providing it.