Why does gross domestic product based on purchasing-power-parity (PPP) valuation of country GDP divided by the total for the world not equal the GDP at PPP share of the world total?
A. Gross domestic product based on purchasing-power-parity (PPP) share of world total is used to calculate weighted averages of country groups (see question below). It is based on growth rates of nominal GDP and domestic prices reported in the October 2008 WEO and held fixed for both the April and October 2009 databases. Gross domestic product based on purchasing-power-parity (PPP) valuation of country GDP is revised for each publication to reflect latest estimates of nominal GDP and domestic price growth.
A. Gross domestic product based on purchasing-power-parity (PPP) share of world total is used to calculate weighted averages of country groups (see question below). It is based on growth rates of nominal GDP and domestic prices reported in the October 2009 WEO and held fixed for both the April and October 2010 databases. Gross domestic product based on purchasing-power-parity (PPP) valuation of country GDP is revised for each publication to reflect latest estimates of nominal GDP and domestic price growth.
A. Gross domestic product based on purchasing-power-parity (PPP) share of world total is used to calculate weighted averages of country groups (see question below). It is based on growth rates of nominal GDP and domestic prices reported in the previous WEO publication and not the current. Gross domestic product based on purchasing-power-parity (PPP) valuation of country GDP is revised for each publication to reflect latest estimates of nominal GDP and domestic price growth.
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