This graphic shows the relationship between union decline and income inequality by state. Union coverage runs along the horizontal axis, with higher union coverage to the right. Inequality, measured by the Gini coefficient, runs up the vertical axis, with greater inequality at the top of the graph. Use the menu at the top to choose the year (1979, 1989, 1999, or 2009), and the menus at right to filter by state, or by right to work status. On each graph, the “right to work” states are colored red, union states are colored green, and the national numbers are represented by the blue dot.