Follow the evolution of inequality within countries with user-friendly graphs

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.

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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.

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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.

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What is income inequality?

Latest News

New paper on top income inequality in Belgium, 1990-2013
February 19, 2019 |

This new paper by André Decoster, Koen Dedobbeleer and Sebastiaan Maes documents the evolution of top income inequality in Belgium using tax tabulations and national accounts data. Their results ... Continue reading

New paper on support for inheritance taxation
February 5, 2019 |

This new paper by Spencer Bastani and Daniel Waldenström studies how attitudes to inheritance taxation are influenced by information about the role of inherited wealth in society. ... Continue reading

Publication of the Commitment to Equity Handbook
January 17, 2019 |

  This new book edited by Nora Lustig is a how-to guide for assessing the impact of fiscal policy on inequality and poverty. It can ... Continue reading

New paper on simplified distributional national accounts ( Working Paper 2019/01)
January 14, 2019 |

This new paper by Thomas Piketty, Emmanuel Saez and Gabriel Zucman proposes a simplified methodology to estimate income inequality by combining surveys, tax data and ... Continue reading

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