Line graph showing Union membership and share of income going to the top 10% from 1920 to 2000 The graph shows how the more Union Membership rises, the less income the top 10% gets. The two lines were almost equal between the late 40s and the 60s but union membership plummeted since the 80s, while the top 10% share of income has exploded at the same time. Source: U.S. Census Bureau and Piketty and Saez (2013) Economic Policy Institute
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