Claim: The G20 economies account for 85 % of the gross domestic product.

The gross world product -LRB- GWP -RRB- is the combined gross national product of all the countries in the world . Because imports and exports balance exactly when considering the whole world , this also equals the total global gross domestic product -LRB- GDP -RRB- . See measures of national income and output for more details . In 2014 , according to the CIA 's World Factbook , the GWP totalled approximately US$ 107.5 trillion in terms of purchasing power parity -LRB- PPP -RRB- , and around US$ 78.28 trillion in nominal terms . The per capita PPP GWP in 2014 was approximately US$ 16,100 according to the World Factbook . According to the World Bank , the 2013 nominal GWP was approximately US$ 75.59 trillion .