SORE develops research on labour law and social security law in the national, European and international context. 1. In the field of labour law, the main areas of research are Labour contracts; Workers participation; - Collective bargaining; - Trade union freedom; - European trade unionism; - Fundamental social rights; - European labour relations; - Conflict of laws. 2. In the field of social security law main areas of research are old age pensions; social security problems of migrant workers; social security of the self-employed. 3. Sore deals also with procedure law in matters of labour and social security.