The economy of the United States is a mixed capitalist economy, characterized by abundant natural resources, a developed infrastructure and high productivity. According to the International Monetary Fund, its GDP of US $ 15.7 billion constitutes 24% of the Gross World Product and about 21% of it in terms of purchasing power parity (PPP). This is the largest GDP in the world, although in 2008 it was 5% lower than the GDP (PPA) of the European Union. The country has the eleventh highest GDP per capita and the sixth highest GDP (PPP) per capita in the world. In addition, the country is in second place in the 2010 Global Competitiveness Index.
