Fields of research

• Political attitudes and political behavior
• Political economy
• Political methodology

• Political attitudes and political behavior (survey studies) of Germany, other European countries and the United States since the 1950s (currently about 600)
• Aggregate data of election results and of social and economic structure for administrative districts and communes of the Federal Republic of Germany since 1949

• Außen- und sicherheitspolitische Orientierungen in den USA und der Bundesrepublik. Ein Vergleich von Strukturen, Dynamik und Determinanten auf Bevölkerungs- und Elitenebene.
  
• Democratic participation and political communication in systems of multi-level governance
  
• Political attitudes and political participation in unified Germany: A long-term comparision of determinants and consequences (1994 election)
  
• Political attitudes and political participation in unified Germany: A long-term comparision of determinants and consequences (1998 election)
  
• Political attitudes and political participation in unified Germany: A long-term comparision of determinants and consequences (2002 election)
  
• Political, social and economic development of Germany reflected in surveys for the United States Information Agency (USIA)
  
• PolitikON
  
• Politische Urteilsbildung in direktdemokratischen Verfahren. Eine Analyse zum Volksentscheid über den Nichtraucherschutz in Bayern 2010.
  
• The determinants of active participation at the European and national levels