The Organisation for Economic Co-operation and Development (OECD) is an international organization that was established on December 14, 1960. Its headquarters is located in Paris, France. The organization serves as a forum for governments from around the world to collaborate on key global issues, including economic policy, social welfare, education, trade, and environmental sustainability. Initially founded by 18 European countries, the United States, and Canada, the OECD has since expanded to include 38 member countries from diverse regions including North America, Europe, and the Asia-Pacific.