The G20 (or Group of Twenty) is an international forum for the governments and central bank governors from:

• Argentina
• Australia
• Brazil
• Canada
• China
• the European Union
• France
• Germany
• India
• Indonesia
• Italy
• Japan
• Mexico
• Russia
• Saudi Arabia
• South Africa
• South Korea
• Turkey
• the United Kingdom
• the United States

Founded in 1999, the G20 aims to discuss policy pertaining to the promotion of international financial stability. It seeks to address issues that go beyond the responsibilities of any one organisation.

The G20 is the latest in a series of post–World War 2 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 Summit of the G20 Finance Ministers and Central Bank Governors, who prepare the leaders’ summit and implement their decisions, was created as a response both to the financial crisis of 2007–2010 and to a growing recognition that key emerging countries were not adequately included in the core of global economic discussion and governance. Additionally, the G20 Summits of heads of state or government were held.

Sources and further reading:

G20 official site

https://www.g20.org/en

G20 website of the OECD

http://www.oecd.org/g20/

G20: Saudi Crown Prince Faces Legal Scrutiny

https://www.hrw.org/news/2018/11/26/g20-saudi-crown-prince-faces-legal-scrutiny

Trump renews China tariff threats ahead of G20 summit

https://www.bbc.co.uk/news/business-46353445

G20 forged in crisis faces major test next week

http://www.reuters.tv/v/P5Xa/2018/11/24/g20-forged-in-crisis-faces-major-test-next-week