The rise in inequality between the 1970s and the 1990s and the persistent gap in pay between large and small employers are two of the most robust findings in the study of labor markets. Mainstream economists focus on differences in observable and unobservable skills to explain both the overall...

Unions suffered a modest decline in their capacity to increase wages over nonunion levels between the late 1970s and the middle 1990s according to evidence presented here. The decline in relative wages was significant in only 13 (of 78) industries examined; in 11 industries the differential...