Union Membership Statistics in 24 Countries

Jelle Visser is the scientific director at the Amsterdam Institute for Advanced Labour Studies (AIAS), University of Amsterdam, Netherlands. E-mail: Jelle.Visser@uva.nl An analysis of "adjusted" union membership data in 24 countries yields past and present union density rates; the data provide explanatory factors for the differences and trends in unionization Union membership statistics in 24 countries