Organisation for Economic Cooperation and Development (OECD)

SOURCES for: TRADE UNION MEMBERS AND UNION DENSITY IN OECD COUNTRIES Jelle Visser, Sébastien Martin and Peter Tergeist http://www.oecd.org/dataoecd/37/2/35695665.pdf [full-text, 8 pages]

General Trade union density rates (TUD) are based on surveys, wherever possible. Where such data were not available, trade union membership and density in European Union countries, Norway and Switzerland were calculated using administrative data adjusted for non-active and self-employed members by Prof. Jelle Visser, University of Amsterdam, along the model used in the ICTWSS Database (Visser, 2009); Ebbinghaus and Visser (E&V, 2000); and in OECD (1991), divided by the corresponding total number of wage and salary earners taken from OECD Labour Force Statistics.

**************************************** Stuart Basefsky Director, IWS News Bureau Institute for Workplace Studies Cornell/ILR School 16 E. 34th Street, 4th Floor New York, NY 10016

Telephone: (607) 255-2703 Fax: (607) 255-9641 E-mail: smb6@cornell.edu ****************************************