In addition, 53% of poor children have a father employed full time full year in 2014, compared to 66% in 2007. Household income is equivalised using the square root scale. The term ‘standard of living’ refers to the equivalised disposable income. Each bar reflects the contribution of changes in family and work characteristics to the evolution of income, and the last white bar shows the percentage change of the income quantile that is not explained by changes in any of the observed household characteristics. The contribution is positive (resp. For instance, market income of ‘poor’ children in two-parent families increased by 3% in two-parent families from 2007 to 2014, change in educational attainment of parents in these families tended to raise the family income threshold of the poorest 25% children by almost 4%, but this effect was offset by the negative effects mainly related to changes in housing status (-3%) and fathers' employment status (-1.1%).