Penn World Table, International economic comparisons

The Penn World Table, generated by the University of Pennsylvania's Economics department, is one of the leading sources of public macroeconomic data - information about the size and state of the world's economies. It provides purchasing power parity and national income accounts converted to international prices for 188 countries for some or all of the years 1950-2004. In addition, the European Union or the OECD provide more detailed purchasing power and real product estimates for their countries and the World Bank makes current price estimates for most PWT countries at the GDP level.