Prices and purchasing power parities (PPP)

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  • Inflation or Consumer price Index (CPI)?

    Inflation is a rise in the general level of prices of goods and services that households acquire for the purpose of consumption in an economy over a period of time.

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  • What are PPPs?

    PPPs are the rates of currency conversion that equalize the purchasing power of different currencies by eliminating the differences in price levels between countries. In their simplest form, PPPs are simply price relatives that show the ratio of the prices in national currencies of the same good or service in different countries.

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  • Methodological Guide for Developing Producer Price Indices for Services (SPPI)

    This second edition of the SPPI Guide is a complement to the International Producer Price Index Manual published by the IMF in 2004 in two ways: it focuses on service-specific aspects in the PPI compilation by developing further the conceptual framework and it adds detailed descriptions of PPI measurement for a wide range of individual service industries.

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What's new

New international comparisons of GDP and consumption based on purchasing power parities for the year 2014

 GDP at current PPPs
Ten largest economies in the OECD area, % of OECD total, 2014

06/02/2017 - The OECD, in partnership with Eurostat, has calculated new benchmark purchasing power parities (PPPs) for GDP and final consumption for the year 2014 for 47 countries following a common methodology.

Detailed 2014 PPP benchmark results are available at They include PPPs, price level indices and associated indicators for some 50 categories of goods and services.  


Behind the numbers

Statistical references

More on methodology