成立时间:由七国集团财长会议于1999年倡议成立。成员:由阿根廷、澳大利亚、巴西、加拿大、中国、法国、德国、印度、印度尼西亚、意大利、日本、韩国、墨西哥、俄罗斯、沙特阿拉伯、南非、土耳其、英国、美国以及欧盟等20方组成。发展历史:国际金融危机爆发前,G20仅举行财长和央行行长会议,就国际金融货币政策、国际金融体系改革、世界经济发展等问题交换看法。国际金融危机爆发后,在美国倡议下,G20提升为领导人峰会。2009年9月举行的匹兹堡峰会将G20确定为国际经济合作的 Established: Proposed by the G7 finance ministers meeting in 1999. Members: 20 parties including Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, South Korea, Mexico, Russia, Saudi Arabia, South Africa, Turkey, the United Kingdom, the United States and the European Union. History of Development: Before the outbreak of the international financial crisis, the G20 held only the meeting of finance ministers and central bank governors to exchange views on such issues as international financial and monetary policies, the reform of the international financial system, and world economic development. After the international financial crisis, at the initiative of the United States, the G20 was promoted to a summit of leaders. The Pittsburgh Summit in September 2009 identified the G20 as an international economic cooperation