Changes Top 1 percent Share and Top Marginal Tax Rate

This scatterplot example was redesigned from the Wikimedia Commons file: Changes Top 1% Share and Top Marginal Tax Rate v2.jpg. "Changes in percent of income held by the top 1% income earners versus changes in the top marginal tax rates for 18 OECD countries for 1975-2008." [commons.wikimedia.org/wiki/File:Changes_Top_1%25_Share_and_Top_Marginal_Tax_Rate_v2.jpg] "Supply side economics has been criticised for benefiting high income earners. Graph shows the change in top 1% income share against the change in top income tax rate from 1975–9 to 2004–8 for 18 OECD countries. The correlation between increasing income inequality and decreasing top tax rates is very strong." [Supply-side economics. Wikipedia] The scatterplot example "Changes Top 1% Share and Top Marginal Tax Rate" was created using the ConceptDraw PRO software extended with the Seven Basic Tools of Quality solution from the Quality area of ConceptDraw Solution Park.