The economy of the United Kingdom is the sixth-largest national economy in the world measured by nominal GDP and seventh-largest measured by purchasing power parity (PPP), and the third-largest in Europe measured by nominal GDP (after Germany and France) and second-largest measured by PPP (after Germany). The UK’s GDP per capita is the 20th highest in the world in nominal terms and the 17th highest measured by PPP. The British economy comprises (in descending order of size) the economies of England, Scotland, Wales and Northern Ireland. The UK is a member of the Commonwealth of Nations, the European Union, the G7, the G8, the G20, the International Monetary Fund, the Organisation for Economic Co-operation and Development, the World Bank, the World Trade Organisation and the United Nations.