%0 Report
        %A Herault, Nicolas
%A Jenkins, Stephen P.
        %T The T-Statistic Approach to Inference for Inequality Indices: The Issue of Grouping Variability
        %D 2025
        %8 2025 Jun
        %I Institute of Labor Economics (IZA)
        %C Bonn
        %7 IZA Discussion Paper
        %N 17972
        %U https://www.iza.org/publications/dp17972
        %X Ibragimov, Kattuman, and Skrobotov (Econometric Reviews, 2025) propose a ‘t-statistic’ approach to inference for inequality indices building on results provided by Ibragimov and Müller (Journal of Business & Economic Statistics, 2010), and they and Midões and de Crombrugghe (Journal of Economic Inequality, 2023) evaluate its performance. We highlight a feature of the t-statistic approach – ‘grouping variability’ – that has been understudied to date, showing how this complicates inference for inequality indices.
        %K asymptotic inference
%K t-statistic inference approach
%K inequality
%K grouping variability