A1: National wealth data derive from national accounts. X axis values are percapita consumption = (GDP - inventory – savings – exports + imports)/ total population
Poverty data and hence quintiles of consumption cost (y axis values) derive from sample survey data.
Hence some incommensurability appears in each data point.
More serious problems arise for cross country comparisons.
PPP = purchasing power parity. A calculation designed to compensate for variations in value of money and cost of goods and services across countries.
PPP figures reduce problems of cross country comparisons to acceptable level for such analysis.
Poverty data and hence quintiles of consumption cost (y axis values) derive from sample survey data.
Hence some incommensurability appears in each data point.
More serious problems arise for cross country comparisons.
PPP = purchasing power parity. A calculation designed to compensate for variations in value of money and cost of goods and services across countries.
PPP figures reduce problems of cross country comparisons to acceptable level for such analysis.
