AIAS has a major collection of academic socio-economic data in the field of labour relations, labour organizations, employment and working conditions in the Netherlands and abroad.

The DATA section of this website presents information about nine data collections of AIAS, namely:

  • Collective Bargaining Newsletter
    The monthly Collective Bargaining Newsletter is produced by AIAS in cooperation with the ETUI and can be found on the AIAS and ETUI websites. The Newsletter includes additional links to records that provide background information. Since June 2013 all files are integrated in an online archive
  • DUCADAM database
    Database of Collective Agreements in the Netherlands. The database is based on the ‘FNV CAO-Database’ and contains detailed information on collective labour agreements concluded in the Netherlands.
  • Flex Work Research Centre
    (FWRC) is a joint initiative launched by ABU and the University of Amsterdam. AIAS and the Hugo Sinzheimer Institute manage this international website that provides information on research reports and articles relating to temporary employment in the broadest sense in five languages (English, Dutch, French, German and Spanish).
  • ICTWSS database 5.0
    The ictwss database covers 51 countries, nearly 200 variables and 55 years (1960-2014). This version of the database has new estimates on collective bargaining coverage rates in the private and public sector,
    adjusted for those employees whose conditions are set by government mandate, as well as on the division between enterprise and sector bargaining, and the extra-contractual coverage of workers through agreements that are extended to non-organized employers. In addition to the dominant level of bargaining, defined as the level at which most agreements apply, a new set of variables tries to capture the actual level of bargaining over wages and working hours through a new set of variables.
  • Intermediair ‘Best Employers’ Dataset
    The Intermediair ‘Best Employers’ survey is an annual survey of Dutch employers concerning their HR policies, used for the Best Employers list in the Intermediair weekly. AIAS acts as an advisor for the questionnaire.
  • Job content of secretaries in the Netherlands
    The dataset is based on comparable surveys of secretaries in the Netherlands about their job content, and working conditions in 1993, 2000, and 2004.
  • Study Group Quality of Labour
    The reports and administration of this study group provides a portrait of an age of social scientific research and the debate in the field of the quality of labour over a period of 20 years. The archive consists of eight document files. Among them reports of the study group meetings during the entire period of 1979-2002; information about 11 international seminars and the programme files of the study group including a Trend report Quality of Labour and the design-focussed research. The archive also contains some publications that have been supervised by the study group and some publications that are hard to obtain elsewhere.
  • Trade organisations
    The Trade organisations database consists of names, years of establishment, historical development, NACE industry-codes and other data of more than 1400 trade and employers organisations. For the years 1980, 1991, 2001 and 2005, the mergers, separations and removals of these organisations have been investigated.
  • WageIndicator database
    The WageIndicator Survey is a continuous, multilingual, multi-country web-survey, conducted more than 60 countries since 2000. The web-survey generates cross sectional and longitudinal data which might provide data especially about wages, benefits, working hours, working conditions and industrial relations.

Contact for more information: prof. dr. Kea Tijdens

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