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home wid world inequality database world by country brazil france india south africa usa afghanistan albania algeria angola argentina australia austria bahrain bangladesh belgium benin bosnia and herzegovina botswana bulgaria burkina faso burundi cabo verde cameroon canada central african republic chad chile china colombia congo cote d ivoire croatia cyprus czech republic denmark dr congo egypt equatorial guinea eritrea estonia ethiopia finland gambia germany ghana greece guinea bissau hungary iceland indonesia iran iraq ireland italy japan jordan kenya korea kosovo kuwait latvia lebanon lesotho lithuania luxembourg madagascar malawi malaysia mali malta mauritania mauritius mexico middle east moldova montenegro morocco mozambique namibia netherlands new zealand niger nigeria north macedonia norway oman palestine poland portugal qatar romania russian federation rwanda saudi arabia senegal serbia seychelles singapore slovakia slovenia somalia south sudan spain sudan swaziland sweden switzerland syrian arab republic taiwan tanzania thailand togo tunisia turkey uganda united arab emirates united kingdom uruguay viet nam yemen zambia zanzibar zimbabwe see all countries data methodology methodology publications research tools codes dictionary about us wid team contact us world inequality lab funding partners jobs news news media world by country recent updates brazil france india south africa usa afghanistan albania algeria angola argentina australia austria bahrain bangladesh belgium benin bosnia and herzegovina botswana bulgaria burkina faso burundi cabo verde cameroon canada central african republic chad chile china colombia congo cote d ivoire croatia cyprus czech republic denmark dr congo egypt equatorial guinea eritrea estonia ethiopia finland gambia germany ghana greece guinea bissau hungary iceland indonesia iran iraq ireland italy japan jordan kenya korea kosovo kuwait latvia lebanon lesotho lithuania luxembourg madagascar malawi malaysia mali malta mauritania mauritius mexico middle east moldova montenegro morocco mozambique namibia netherlands new zealand niger nigeria north macedonia norway oman palestine poland portugal qatar romania russian federation rwanda saudi arabia senegal serbia seychelles singapore slovakia slovenia somalia south sudan spain sudan swaziland sweden switzerland syrian arab republic taiwan tanzania thailand togo tunisia turkey uganda united arab emirates united kingdom uruguay viet nam yemen zambia zanzibar zimbabwe see all countries data world inequality database beta methodology methodology publications research tools codes dictionary about us wid team contact us world inequality lab funding partners jobs news news media en français 中文 中国 español हिन्दी skip to content wid world inequality database world inequality database world view compare inequality between countries on an interactive world map country graphs follow the evolution of inequality within countries with user friendly graphs data tables download our open access datasets support independent research and open data on global inequality make a donation where are you in the income and wealth distribution use our comparator to position your income relative to the income of others view our key reports latest news income inequality and structural transformation evidence from swedish micro data 1870 1970 june 16 2026 wid world why did income inequality decline so dramatically during the twentieth century existing explanations often emphasise progressive taxation welfare state expansion or the economic disruptions caused continue reading jean drèze receives 2026 global inequality research award during the world inequality conference in paris june 5 2026 wid world on friday 5 june 2026 jean drèze was awarded the global inequality research award gira during the world inequality conference organized at paris school of continue reading global justice report the world inequality lab maps a path to 5 000 a month average incomes for all countries within 1 8 c of warming june 4 2026 wid world on june 4 the world inequality lab launched the global justice report a plan for equality and prosperity within planetary boundaries during the opening of continue reading taxing wealth enrichment lessons from the 1945 french national solidarity levy may 18 2026 wid world exceptional wealth taxes and capital levies have not yet received all the attention they deserve notably because it is often assumed that most one off wealth continue reading see all news subscribe to newsletter the source for global inequality data leading methodology to track inequality reference data to track economic inequality at the global level within countries and over time based on the systematic combination of national accounts survey and fiscal data learn more open access information to feed public debates open access data easy to use visualization tools and transparent methodology for researchers civil society business and political communities learn more international independent and leading research more than 100 top level researchers involved covering 70 countries over 5 continents entirely funded by public and non profit actors learn more support wid world donate contact us website credits faq donate follow us on facebook on bluesky on linkedin on youtube share this on facebook on bluesky on linkedin privacy policy website credits close website created in 2015 2017 with the collaboration of design visualisation benjamin grillet françois prosper brice terdjman anthony veyssière web development aliquidstudio benjamin grillet database architecture and optimization panagiotis korvesis antonis skandalis konstantinos skianis michalis vazirgianis it consultants thomas blanchet guillaume saint jacques david smadja assistants yu tian regina hung amory gethin project management facundo alvaredo and lucas chancel frequently asked questions faq close what is wid world for more information on wid world and its history click here for more information on the network of researchers click here for more information on methodology click here how to read wid world graphs click here for help on how to navigate through wid world menus and graphs i encounter technical problems on wid world what should i do first accept our apologies second you should delete the cache memory of your browser generally under settings history clear cache then close it and try again if this does not solve the problem you may want to try with a different browser and finally send us an email with the description of the issue and the details of your operative system and browsers versions our contact mail is in the website footer under the contact us section what distinguishes wid world s inequality data from the oecd the world bank or other inequality data providers only few institutions provide inequality estimates and those who do so e g the the oecd or the world bank data portals rely for the most part on household surveys one key problem with surveys however is that they are based upon self reporting and are well known to underestimate top incomes and top wealth shares in addition surveys only cover a limited time span and make it impossible to offer a long term perspective on inequality trends in contrast wid world combines national accounts and survey data with fiscal data sources this allows us to release inequality estimates that are more reliable from the bottom to the top of the distribution of income and wealth and also that span over much longer periods the data series provided in wid world should however not be seen as perfect and definitive existing series are continuously updated and improved by wid world fellows following new raw data releases or conceptual and methodological improvements all the methodological followed to construct our series can be found in country specific papers in our methodology library or in the dina guidelines should you have further questions on the data do not hesitate to contact us what distinguishes wid world s national accounts data from the un the imf the world bank or other national accounts data providers estimates for national accounts such as national income and national wealth found on wid world and on international statistical institutions databases are generally consistent buy can vary for several reasons first we release detailed series for national wealth accounts which usually cannot be found on other portals next we include corrections for offshore wealth and offshore capital income so that our series on foreign capital income inflows and outflows are consistent at the global level e g they sum to zero which is typically not the case in existing databases finally reliable series for the consumption of fixed capital capital depreciation estimates are not readily available for a large number of countries so we combine various sources and develop new methods to derive consistent global series as a consequence we are able to offer consistent global series on national income i e gdp minus consumption of fixed capital plus net foreign income which do not exist elsewhere wid world uses 2011 purchasing power parity round for international comparisons it should also be noted that default monetary values for eurozone countries are displayed in ppp euros and are thus different from market exchange rate euros a eurozone country with high relative prices will have a lower ppp euro average income values market exchange rates values can be obtained in our custom menus all these methodological choices can explain slightly different values between wid world and other data portals they are described in the metadata associated to each variable and in the associated methodological documents see in particular the distributional national accounts guidelines there in addition it should be noted that there are specific countries such as china where there is substantial controversy about price deflators and aggregate real growth in such cases we review all existing series and attempt to combine them in the most sensible manner this is fully explained in the country specific papers should you have further questions on the data do not hesitate to contact us there are already many on line economic data portals why using wid world over the past decades the increase in economic inequalities was largely driven by a rise in income and wealth accruing to the top of the distribution however household surveys the data sources traditionally used to observe these dynamics do not capture these evolution very well they provide useful information and cover a lot of countries but do not inform adequately on income and wealth levels of the richest individuals wid world overcomes this limitation by combining different data sources national accounts survey data fiscal data and wealth rankings by doing so it becomes possible to track very precisely the evolution of all income or wealth levels from the bottom to the top the key novelty of the wid world project is to use such data in a systematic manner allowing comparisons between countries and over long time periods for more information on what you will find and will not find on wid world click here what is the meaning of the economic concepts used on wid world we try our best to use economic concepts which are consistent with national accounting i e the system used for measuring the economic activity of a nation and that can also make sense for the general public on each graph users can click on the icon and will find the definition of the concepts at stake users can also use our quick search glossary to find the definition they want how is wid world funded wid world is entirely funded by public non profit actors and personal donations for more information on our funders click here if you wish to support us please click on the donate button at the bottom of the funding page