Working experience

since 2017	President Research Institute for Official and Survey Statistics (RIFOSS)
since 2011	Chairholder (W3) Economic and Social Statistics Department Trier University
2006 - 2011	Chairholder (W2) Economic and Social Statistics Department Trier University
2005 - 2006	Substitute Professor (W2) Economic and Social Statistics Department Trier University
1997 - 2005	Assistant Professor (with tenure) Chair of Statistics, Economics and Operations Research University of Tübingen
1991 - 1997	Research Assistant Chair of Statistics, Economics and Operations Research University of Tübingen

                            Education

2005	Habilitation (postdoctoral degree) University of Tübingen Venia legendi for Statistics and Operations Research Habilitation thesis: Datenqualität in komplexen Stichprobenerhebungen (Data Quality in Complex Sample Surveys)
1996	Doktor rerum politicarum (Ph.D.) University of Tübingen Dissertation: Gebundene Hochrechnung bei Stichprobenerhebungen mit Hilfe von Splines (Regression Estimation in Survey Sampling Using Splines)
1987 - 1991	Studies of Mathematics and Economics University of Tübingen
1984 - 1987	Studies of Mathematics and Economics University of Heidelberg

  Research interests

• Survey statistics (survey sampling, variance estimation, data quality in complex surveys)
• Computational statistics and Monte Carlo methods
• Small area estimation
• Statistical indices and indicators
• Microsimulation methods and their application
• Numerical algorithms in survey statistics

  For further information, including research project experience, publications, etc., please see the department website.