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Data on REDucing INEQuality

Our data on redistribution includes tax, transfer and inequality measures for 22 countries over the 1999-2016 period. We used household surveys harmonized by the Luxembourg Income Study (LIS) and we imputed missing tax data. You may use the data to compare the reduction in inequality due to taxes and transfers across countries and time. The data also includes measures of the progressivity and average rate of taxes and transfers so you can compare how each country delivers redistribution.

Download .dta Download .csv

Note: We display the most recent year for each country, which is between 2010 and 2016 with two exceptions. For Ireland, we use the pre‐crisis year of 2007 and the most recent year for Sweden is 2005.


If you use the data for your research, please cite the publication:

Guillaud, E., Olckers, M., & Zemmour, M. (Forthcoming). Four levers of redistribution: The impact of tax and transfer systems on inequality reduction. Review of Income and Wealth. DOI: 10.1111/roiw.12408

and the dataset:

Guillaud, E., Olckers, M., & Zemmour, M. 2019. REDINEQ data (version: April, 2022).


Our data is extracted from nationally representative household surveys, harmonized by the Luxembourg Income Study. We used the OECD’s Taxing Wages series to record tax rates for the imputations of social security contributions. You may view our code in this Github repo.


This data is part of research project on tax and transfer systems by Elvire Guillaud, Matthew Olckers and Michaël Zemmour. Elvire and Michaël have a research agenda focusing on redistribution, which includes this project and several others.

Victor Amoureux contributed extensively to the code.


This project received funding and support from LIEPP Sciences Po and EN3S. We thank Silvia Avram, Thomas Breda, Laurent Caussat, Marie-Cécile Cazenave, Conchita D’Ambrosio, Bernhard Ebbinghaus, Jörg Neugschwender, Bruno Palier, and Denisa Solognon for useful discussions about the data and methodology. We are also grateful to the LIS team for answering our questions about the data.