Public sector reforms
eParticipation and Electronic Democracy
Program evaluation / evaluation research in the field of administrative sciences
Application-based research on digitization of local governments
Governance and political management in the public sector, particularly in local governments
Transformation processes of public administrations, public sector reforms and administrative cooperation
Organisational structures and management practices of public administrations, especially Process Management and Knowledge Management
Principles of and methodology of social sciences and administrative science
Trustee of the Hans Boeckler Foundation