Industrial Relations Data (IRData)

The IRData covers two key elements of industrial relations: trade unions and collective bargaining. It includes data on trade union density and collective bargaining coverage. It is a compilation of data collected annually by the ILO. It can be accessed at: (choose "by subject" and then "Industrial Relations Indicators").

Latest Issue Brief: Visser, J. Hayter, S. and Gammarano, R. 2015. Trends in collective bargaining coverage: Stability, erosion or decline? Labour Relations and Collective Bargaining Policy Brief No. 1. ILO, Geneva.

International guidelines

 A methodological framework for collecting and computing statistics on trade union density and collective bargaining (2013) was discussed by the 19th International Conference of Labour Statisticians.

Methodological guides

Other databases