The WSI-Datenzentrum is a service provided by the Institute for Social and Economic Research (WSI). It collects and presents primary and secondary data on e.g. working conditions, co-determination or social policy. Primary data collected are primarily the WSI works councils surveys. Interested academics can use the works councils surveys collected from 2005 to 2011. The records are available to everyone and free of charge after contacting the repository owner and signing a data usage statement.