From the summary:
A new study conducted by the Midwest Economic Policy Institute, the School for Workers at the University of Wisconsin–Extension, and the Project for Middle Class Renewal at the University of Illinois at Urbana-Champaign, evaluates the impact that labor union membership has on a worker’s hourly wage in Wisconsin and in the United States. A key finding in the report, The State of the Unions 2017: A Profile of Unionization in Wisconsin and in the United States, indicates that unionization benefits low-income and middle-class workers most in Wisconsin, helping to foster a strong middle class and reduce income inequality.
Since 2007, unionization has declined in Wisconsin and in the United States. There are about 157,000 fewer union members in Wisconsin today than there were in 2007, accounting for 14.3 percent of the 1.1 million-member drop in union workers across the nation over that time. There are 155 fewer labor unions and 2,247 fewer individuals working for labor unions in Wisconsin today than there were in 2006. This is in part due to Wisconsin’s Governor Walker’s fight against collective bargaining….
As of 2016, the overall union membership rate is 8.1 percent in Wisconsin:
• Men are more likely to be unionized (10.5 percent) than women (5.7 percent);
• Veterans are among the most unionized socioeconomic groups in Wisconsin (8.4 percent);
• By educational attainment, the most unionized workers in Wisconsin hold Master’s degrees (15.2 percent) and associate’s degrees (10.9 percent);
• Public sector unionization (22.7 percent) is four times as high in Wisconsin as private sector unionization (5.5 percent)…..