What is the primary purpose of the Organisation for Economic Co-operation and Development (OECD)?

The primary purpose of the Organisation for Economic Co-operation and Development (OECD) is to stimulate economic progress and world trade. Established in 1961, the OECD aims to promote policies that improve the economic and social well-being of people around the world. It provides a platform for governments to work together, share information, and coordinate efforts to address various global economic challenges.

The organization achieves this by offering insights, data, and analysis to help member countries enhance their economic performance and foster global trade connections. By promoting sustainable economic growth, the OECD plays a critical role in shaping international economic policy and facilitating the exchange of ideas between nations.

While the other options relate to important economic activities, they do not capture the OECD's overarching mission as effectively as stimulating economic progress and world trade does. For example, although the OECD engages in discussions that might involve regulation of international trade and collaboration with developing countries, its central purpose is more broadly focused on fostering overall economic growth and cooperation among its member countries.