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• International Comparison Program (ICP) 2005

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  A collection of comparative price data and detailed expenditure values of countries’ gross domestic products (GDP), and purchasing power parities (PPPs) estimates of the world’s economies.

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  Last Updated:09/10/2021

• International Comparison Program (ICP) 2011

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  A set of comparable international price and volume measures of gross domestic products (GDP) and expenditure aggregates for 199 countries that participated in the 2011 round of International Comparison Program (ICP) and estimates for 15 non-participating countries. The data covers 26 expenditures categories for goods and services, and several indicators including purchasing power parities (PPPs), expenditure shares of GDP, total and per capita expenditures in US dollar both in exchange rate terms and PPP terms, and price level Indices. For further information see http://www.worldbank.org/en/programs/icp

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  Last Updated:08/24/2020

• PPPs Regulatory Quality

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  Procuring Infrastructure PPPs: Adherence to Best Regulatory Practices is a collection of comparable and actionable data on the procurement of large-scale public-private partnership (PPP) infrastructure projects around the world. The assessments of countries’ regulatory practices are organized in four thematic areas: preparation, procurement, contract management, and a special module on unsolicited proposals (USP).

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  Last Updated:04/25/2019

• ICP 2017

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  Results from the International Comparison Program (ICP) 2017 cycle include data for the new reference year 2017, revised data for the previous reference year 2011, and annual purchasing power parities (PPPs) for 2012 to 2016. 2017 results are available for 176 participating economies and their aggregate regions. They cover 44 expenditure headings and provide several indicators for each heading, including PPPs, national accounts expenditures in PPP and nominal terms, and price level indices. Imputed results are available for an additional 12 economies that did not participate in the ICP 2017 cycle. Revised 2011 results are available for 179 participating economies and cover 44 expenditure headings and several indicators, including PPPs, national accounts expenditures in PPP and nominal terms, and price level indices. Additionally, partial results are available for 20 Pacific islands, while imputed results are available for 15 economies that did not participate in the ICP 2011 cycle. Annual PPPs are available for 2011 to 2017 and cover 6 major expenditure headings.

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  Last Updated:10/21/2020

• Food Prices for Nutrition

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  Food Prices for Nutrition provides indicators on the cost and affordability of a healthy diet (CoAHD) in each country, showing the population’s physical and economic access to sufficient quantities of locally available items for an active and healthy life. It also hosts indicators on the cost and affordability of an energy-sufficient diet and of a nutrient-adequate diet. These indicators are explained in detail in the Food Prices for Nutrition DataHub at: https://www.worldbank.org/foodpricesfornutrition. The database version Food Prices for Nutrition 4.0, estimated in July 2025, relies on the 2021 global retail food price data from the International Comparison Program (ICP) and the latest 2021 PPP conversion factors to assess the diet cost indicators. For the non ICP benchmark years, it estimates the diet costs based on the latest food and general CPI data from FAOSTAT. Comparing to previous versions (see FPN Database Archives), it also reflects the most updated income distribution data for India and others from the World Bank’s Poverty and Inequality Platform (PIP). For the first time, the cost and affordability of a healthy diet and related indicators are estimated up to one year preceding the report year and diet cost indicators are both reported in PPP dollars and local currency units. Version 4.0 also updates the method of converting current year to constant year PPPs based on national CPIs instead of the US inflations. Estimates for the prevalence and number of people unable to afford a healthy diet were imputed for countries with missing information based on their regional and global aggregates. Countries' income classifications at the aggregate reporting level follow the calendar year of 2023 standard (the fiscal year of 2025 of the World Bank). The Cost and Affordability of a Healthy Diet indicators reported in the United Nations' State of Food Security and Nutrition in the World 2025 correspond to those in version 4.0. The most recently updated database version, Food Prices for Nutrition 4.1, builds on version 4.0 and introduces two additional contextual indicators: GDP per capita, PPP (current international dollars), and GNI per capita, PPP (current international dollars), both sourced from the World Bank’s World Development Indicators (WDI) database. These indicators are included to facilitate comparisons between diet cost and affordability indicators and countries’ income levels.

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  Last Updated:12/18/2025

• ICP 2021

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  Results from the International Comparison Program (Benchmark) 2021 cycle include data for the new reference year 2021, revised data for the previous reference year 2017, and purchasing power parities (PPPs) time series for 2018 to 2020. 2021 results are available for 176 participating economies and their aggregate regions. They cover 45 expenditure headings and provide several indicators for each heading, including PPPs, national accounts expenditures in PPP and nominal terms, and price level indices. Imputed results are available for an additional 19 economies that did not participate in the ICP 2021 cycle. Revised 2017 results are available for 178 participating economies and cover 44 expenditure headings and several indicators, including PPPs, national accounts expenditures in PPP and nominal terms, and price level indices. Additionally, imputed results are available for 17 economies that did not participate in the ICP 2017 cycle. Annual PPPs are available for 2017 to 2021 and cover 6 major expenditure headings. 2022-2023 GDP PPP series are also provided beyond the most recent ICP benchmark based on the standard extrapolation approach. The standard ICP methodology between the two most recent 2017 and 2021 ICP cycles has been maintained. However, in ICP 2021, the Commonwealth of Independent States (CIS) region was linked through the standard global core list approach, unlike in ICP 2017, when the CIS region was linked through the Russian Federation, which participated in both the OECD and CIS comparisons. For ICP 2017, the Russian Federation results are based on the OECD comparison, and for ICP 2021, they are based on the CIS comparison. Furthermore, the Asia and Pacific region moved to the standard ICP approach for estimating housing PPPs based on rental and volume data during the ICP 2021 cycle. The standard approach was utilized for the revised ICP 2017 results and ICP 2021 results, both at the regional and global levels, instead of the previously utilized reference volume approach. 1/ PPPs are statistical estimates and should be treated as approximations of true values, subject to sampling, measurement, and classification errors. They should not be used as indicators of currency under- or overvaluation. ICP Results are based on data supplied by participating economies to the global and regional implementing agencies and produced in accordance with ICP methodology. Results are not deemed to be national official statistics. 2/ The standard ICP methodology between the two most recent 2017 and 2021 ICP cycles has been maintained. However, in ICP 2021, the Commonwealth of Independent States (CIS) region was linked through the standard global core list approach, unlike in ICP 2017, when the CIS region was linked through the Russian Federation, which participated in both the OECD and CIS comparisons. For ICP 2017, the Russian Federation results are based on the OECD comparison, and for ICP 2021, they are based on the CIS comparison. Furthermore, the Asia and Pacific region moved to the standard ICP approach for estimating housing PPPs based on rental and volume data during the ICP 2021 cycle. The standard approach was utilized for the revised ICP 2017 results and ICP 2021 results, both at the regional and global levels, instead of the previously utilized reference volume approach. For the time series estimates for 2018-2020, data were complemented with internal estimates by ICP Global Office where participating economies could not provide any of input data required for PPPs time series estimates.

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  Last Updated:08/04/2024