Equivalisation Comparator
Apply three UK equivalisation scales — Original OECD, Modified OECD, and McClements — to the same stylised household income distribution. Poverty rates diverge purely from the formula choice. Adjust the threshold slider to explore sensitivity across the 40–75% of median range.
Poverty rate by scale
Equivalised income distribution — dashed vertical lines show each scale's poverty threshold
The raw income data and household composition are identical across all three calculations. Differences in poverty rate arise entirely from the choice of equivalisation formula — not from any change in household circumstances.
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Poverty threshold: 60% of median equivalised income. 200 stylised UK households. Original OECD: 19.5% poverty rate (39 households). Modified OECD: 20.0% poverty rate (40 households). McClements: 20.0% poverty rate (40 households). All three scales use the same raw income data. Differences in poverty rate arise entirely from the formula.