Quiz Test Your Knowledge: Labor Unions Last updated November 5, 2021 ShareTweet Loading Quiz... Sources for the quiz Economic Policy Institute, Unions Help Reduce Disparities and Strengthen Our Democracy (fact sheet), April 23, 2021. Celine McNicholas, Margaret Poydock, and Lynn Rhinehart, “The PRO Act Is Pro-Worker: How the Act Would Restore Workers’ Freedom to Form a Union,” Working Economics Blog (Economic Policy Institute), February 4, 2021. Heidi Shierholz, Testimony before the Senate Committee on Health, Education, Labor and Pensions for a hearing on the right to organize and on empowering U.S. workers in a 21st century economy, July 22, 2021. Quiz answers are current as of November 5, 2021. Sign up for EPI’s newsletter so you don’t miss a moment of our research and analysis.