One can use the Census Bureau's income statistics to show either that low-income children were considerably worse off or considerably better off in 1999 than in 1969. Likewise, one can use Census statistics to show that middle-income children gained very little or a great deal between 1969 and...

Most methods for the analysis of distributional change rely on the changes in the income of a particular group of people, taking either the situation of this group in the previous period, or the average change in the population, as reference point. By contrast, we propose a measure of...