list of countries by GDP
Historical Data 1970-2013 GDP at current US$ GDP at current PPP int.$ Real GDP Growth GDP by country GDP per capita GDP per capita Ranking Database
G20 Economic Forecast: GDP growth, Inflation, Unemployment, Government Debt, Current Account Balance, External Debt
"A purchasing power parity (PPP) between two countries, A and B, is the ratio of the number of units of country A’s currency needed to purchase in country A the same quantity of a specific good or service as one unit of country B’s currency will purchase in country B. PPPs can be expressed in the currency of either of the countries. In practice, they are usually computed among large numbers of countries and expressed in terms of a single currency, with the U.S. dollar (US$) most commonly used as the base or “numeraire” currency" - Global Purchasing Power Parities and Real Expenditures. 2005 International Comparison Program. The World Bank.