This bar chart from Tim Smeeding, Director of the Institute for Research on Poverty at the University of Wisconsin, compares income distributions in 31 countries for various years using data from the Luxembourg Income Study. The figure shows the relative difference between those at the bottom of the distribution (10th percentile) and those at the top of the income distribution (90th percentile) as well as the ratio between those two points. Because those measures focus on only two points in the distribution, an additional measure of inequality (the Gini coefficient) is presented as well. Are there better ways to show this data?