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.