World Income Inequality Database , WIID



The World Income Inequality database is part of the United Nations University World Institute for Development Economics Research (UNU-WIDER) and contains information on income inequality for 189 developed, developing and transition countries.

Data Providers


Data Collection

Periodicity of collection

Years covered by the data differ per country.

Type of information available

  • Text Documents Available
  • Indicators available
  • Guidelines for use available
  • Search or browse function available online


Freely accessible without registration

DOI number:

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