1 November 2025
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Why Don’t We Measure Equality? Rethinking the Methodology of SDG 10
The global development community has spent decades quantifying inequality of income, wealth, education, opportunity, and social mobility. From the Gini Coefficient to Theil Index, Palma Ratio, and Oaxaca–Blinder Decomposition, we have built sophisticated tools to capture how unequally resources are distributed. But rarely do we ask a deceptively simple question: why do we measure inequality,…