Data on government sector receipts, and on taxes in particular, are basic inputs to most structural economic descriptions and economic analyses and are increasingly used in economic comparisons.

The OECD is an international organization that consists of 30 Member countries from the developed world that accept the principles of representative democracy and free market economy. It originated in 1948 as the Organization for European Economic Cooperation (OEEC) to help administer the Marshall Plan for the reconstruction of Europe after World War II. Later its membership was extended to non-European states, and in 1961 it was reformed into the OECD. The organization provides a forum where governments can compare policy experiences, seek answers to common problems, identify good practice and co-ordinate domestic and international policies. With active relationships with some 70 other countries and economies, NGOs and civil society, the organization has a global reach. Renowned for its publications and statistics, its work covers economic and social issues from macroeconomics, to trade, education, environment, development and science and innovation.