The household composition coefficient: A method for measuring inequality in the distribution of childrearing demands among households

A method for measuring distributional inequality was applied to household composition data to document and analyze the trend in the distribution of children and adult among households. Lorenz Curve methodology was used to depict the departure of child-adult living arrangements from absolute equality. Households and children were ranked by a child-adult ratio to capture the trend toward smaller families, single-parent families, and childless households. A Gini Coefficient was calculated to mathematically represent the relative degree of inequality in the distribution of childrearing demands from 1940 to 1980. The results evidence a trend of growing inequality, particularly since 1960, in the distribution of childrearing demands. The measure has application as a social indicator to document the extent to which responsibilities for daily care of children are distributed through the population.