OECD Income Distribution Database (IDD): Gini, poverty, income, Methods and Concepts

To benchmark and monitor income inequality and poverty across countries, the OECD relies on a dedicated statistical database: the OECD Income Distribution Database. Due to the increasing importance of income inequality and poverty issues in policy discussion, the database is now annually updated.

IDD Database in OECD.Stat

18 July 2016: Release of 2015/16 data update

Trends and levels in Gini coefficients before and after taxes and transfers, average and median household disposable incomes, relative poverty rates and poverty gaps, before and after taxes and transfers, etc.

by Measure
by Country
- Metadata: Sources and income years (2-page, .pdf) and Country-specific detailed information for latest year and Wave 7 (69 pages, .xlsx)

in OECD Regions (module based on 2010 income data only)
- see Insights (2-page, .pdf) and Data sources and reference years (2-page, .pdf)

See also:

Wealth distribution database
- see also Household wealth inequality across OECD countries: new OECD evidence (OECD Statistics Brief No. 21)

METHODs and concepts

Terms of reference of OECD project on the distribution of household incomes, using:
- 2012 onwards definition (Wave 7)
- definition until 2011 (Wave 6)
What are equivalence scales?
Canberra Group Handbook on Household Income Statistics - see:
- Handbook on household income statistics (Second edition - 2011)
- Report and Recommendations (First edition - 2001)
Meetings of providers of OECD Income Distribution data:
- 18-19 February 2016
- 21-22 February 2013
16-17 March 2009: Joint OECD/University of Maryland International Conference Measuring Poverty, Income Inequality, and Social Exclusion - Lessons from Europe,
Measurement of Low Incomes and Poverty in a Perspective of International Comparisons; Labour Market and Social Policy Occasional Paper No.14 (1994)

OTHER INTERNATIONAL DATABASES RELATED TO INCOME DISTRIBUTION

Income and living conditions in Europe (Eurostat)
Luxembourg Income Study (LIS)
World Top Incomes Database (Paris School of Economics)
All The Ginis Dataset (World Bank)
Chartbook of Economic Inequality (Atkinson and Morelli)

Quality review of the OECD IDD and earnings databases (Dec. 2012)

This quality review is in three main parts:
-Part I reports the results of a first self-assessment of different quality dimensions of the OECD Database on Household Income Distribution and Poverty (.pdf)
-Part II assesses the cross-country comparability of the OECD Earnings Distribution Database (.pdf)
-Part III provides detailed country data reviews on income distribution data, for the 34 OECD member countries. These country reviews compare the OECD benchmark series for income distribution and poverty reporting with alternative estimates which are available on a national or international basis - each country separately (.pdf) including revised versions:

THE OECD'S "COMPARE YOUR INCOME" WEB TOOL

How much do you earn compared with others in your country? Do you feel rich, poor, or just average? Use this tool and found out how your income really compares.

Social and welfare issues

OECD Income Distribution Database (IDD): Gini, poverty, income, Methods and Concepts