Purchasing power parity (PPP) is a popular macroeconomic analysis metric used to compare economic productivity and standards of living between countries. PPP involves an economic theory that compares different countries' currencies through a "basket of goods" approach.

Purchasing power parity (PPP) is a measure of the price of specific goods in different countries and is used to compare the absolute purchasing power of the countries' currencies. PPP is effectively the ratio of the price of a basket of goods at one location divided by the price of the basket of goods at a different location.

Purchasing power parities (PPPs) are the rates of currency conversion that try to equalise the purchasing power of different currencies, by eliminating the differences in price levels between countries.