Since I think it might not be clear, Amir Sufi's analysis concerns wealth, not income - so the 3rd graph in the article is about wealth, but the first two are a

Since I think it might not be clear, Amir Sufi's analysis concerns wealth, not income - so the 3rd graph in the article is about wealth, but the first two are about income. The Atlantic article is pretty bad about making this clear, though other reporting of Sufi's research is better.