In Canada, the increase in primary and disposable income is explained by two factors adding their effects to those of changes in family characteristics. First, the income earned by fathers in employment increased, which, as in France or the United Kingdom, indicates an improvement in the quality of their employees; In addition, the income of residential property owners increased relative to that of tenants, which contributed to an increase in the standard of living contrary to the trend observed in the United Kingdom. In Korea, the incomes of families with one and especially two children have all increased equally, contributing to the improvement in the standard of living of the 25th percentile of children.