European Union (especially European Council, Council of Ministers, and European Monetary Union); politics and financial markets; prediction of political events; causes and consequences of political violence; Globalization; terrorism; diversity and political violence; mediation and other forms of conflict management
European Integration and Institutions, Single European Market, Decision-making in the EU, i.e. Differentiated Integration, Elections and Democracy in Africa, Conflicts in Africa, Political Violence, Armed Groups, Mediation, Constitution-making following Internal Conflicts, Ethnic Groups and Conflict
Public finance/fiscal transfer, municipal finances, debt brake, federalism in Germany, federalism reforms, the'Bundesrat', multi-level government, intergovernmental relations, public administration, administrative reforms, bureaucracy, administrative ethics, fight against corruption, scandals, political responsibility
Quantitative and qualitative methods: Advanced data analysis, semi-parametric regression, ecological inference, maximum likelihood estimation, categorical data analysis, latent variabel modelling, reconstruction of political positions from texts, research design in comparative political and social research
Political attidudes and political behavior: Impact of social structure and party competition on voting, political sophistication and opinion formation, strategic voting, political interest and political participation.