Low (High) Union = High (Low) Employment Growth
From 2003 to 2008, for example, aggregate private-sector employment grew by a healthy 10.4% in the 11 states in which fewer than 5% of private employees were under union
monopoly control as of 2003. In the 18 states with private-sector monopoly bargaining below the national average, but above 5%, employment grew by 6.1%. But in the 21 states with above average private-sector unionization, aggregate employment grew by just 3.5% -- roughly a third as much as in the lowest-union-density states.