The purpose of this study was to collect and code data on union organizations, employers, and labor market institutions in Organisation for Economic Co-operation and Development (OECD) countries in the postwar era. The data include information on union membership, density, and concentration, as well as on the centralization of bargaining in 20 OECD nations between 1950 and 2000. Countries included are Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Ireland, Italy, Japan, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, the United States, the United Kingdom, and New Zealand. The file includes information about confederal and governmental involvement in wage-setting and union concentrations, as well as authority data and affiliate authority data about union associations and employer associations. Other key variables include adjusted and unadjusted coverage rate, total union density, net union density, and names of union members.
