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

OECD annual inflation continues upward, reaching 4.3% in August 2021 driven by energy and food prices 

5 Oct. 2021 – Inflation in the OECD area rose to 4.3% in the 12 months to August 2021, compared with 4.2% in July, continuing the upward trend beginning in December 2020. In the euro area, annual inflation picked up strongly to 3.0% in August 2021, from 2.2% in July, but remained lower than in the OECD area as a whole, particularly compared with the United States, where annual inflation stood at 5.3% for the same period.



Behind the numbers

Statistical references

More on methodology


Energy prices push OECD inflation up to 2.4% in March 2021