reflects unions' ability to tackle under-employment, such that union workers work closer to the hours they desire than their … non-union counterparts. The traditional focus on hourly wage differentials underplays the important role trade unions play …

The United States has experienced a significant decline in labor unions over the past half-century. We examine the … aggregate labor market impact of labor unions, the causes of their decline, and their welfare and distributional consequences …, accounting for unions' effects on wages and employers' insurance provisions. We first provide descriptive evidence that social …