Sam (who asked that I not list his last name and affiliation) is working on a research paper in which he would like to revise this chart from the OECD (original paper and data from the OECD). He doesn’t think the chart does a good job of illustrating the differences in the two measures of inequality, but isn’t sure how to go about changing it. The chart shows two versions of the Gini coefficient (a measure of inequality) for a number of different countries. Thoughts?