Our methodological driver is ‘civilology’, which is the ‘law in action’-approach towards research into private legal relationships and emerged to the example of the Anglo-American socio-legal studies. We supplement our ‘black letter law’ research with multi- and transdisciplinary approaches where useful and possible. Multidisciplinary research is the advanced form of intra- and inter-disciplinary research, the latter being research within resp. between different scientific fields. Transdisciplinarity is co-creation of scientific knowledge by science and society. In addition, we conduct empirical research.