I am Assistant Professor of Statistics at the University of Bonn.

My research interests focus on functional data analysis, semi- and nonparametric statistics, and longitudinal data analysis.



Submitted Working Papers

Work in Progress

  • Take off your shoes! Analyzing the foot strike behavior of habitual shod runners when running barefoot (with S. Willwacher, J. Hamill, and G. P. Brüggemann)

  • Footstrike adaption to barefoot running (with S. Willwacher)

  • A subsampled penalty criterion to estimate the number of non-vanishing common factors in large panels (with O. Bada)

  • On the minor role of bandwidth selection when smoothing sparse to dense functional data

  • Observe the Unobservable: Firm Value and Firm-Specific Heterogeneity in Time Trends (with J. Gider)

  • Life-cycle Wage Trajectories with Missing Data: A Factor Analytic Approach (with P. Pinger)

Talks 2018

  • 13th German Probability and Statistics Days (GPSD), Feb. 27 - Mar. 2, University of Freiburg

  • Joint Research Seminar of Karl-Franzens-University of Graz and TU Graz, Mar. 6 (invited by Hans Manner and Siegfried Hörmann)

  • 4th Conference of the International Society for Nonparametric Statistics (ISNPS), Jun. 11-15, Salerno, Italy (invited by Alicia Nieto-Reyes)

  • 2nd Workshop on Statistics & Econometrics, Jul. 13, 2018, University of Passau (invited by Harry Haupt and Joachim Schnurbus)

  • 2nd Satellite CRoNoS Workshop on Functional Data Analysis, Aug. 31 - Sept. 2, University of Iasi, Romania (invited by Frédéric Ferraty)

  • spinfortec, Sept. 6-7, TU Munich

  • Workshop on Functional Data Analysis and Beyond, Dec. 3-14, Creswick Melbourne, Australia (invited by Aurore Delaigle, Paul Debashis, and Frédéric Ferraty).

  • 11th International Conference on Computational and Methodological Statistics (CMStatistics 2018), Dec. 14-16, University of Pisa, Italy (invited by Gil González Rodríguez)

Teaching Portfolio

Excerpt of past and current courses:


  • Together with my co-author Oualid Bada, I am the creator and maintainer of the R-package phtt. The package provides estimation procedures for panel data with general forms of unobservable heterogeneous effects.

Institutions & Affiliations

University of Bonn.

Hausdorff Center for Mathematics.

German Sport University Cologne.


  • My former life took (mostly) place in dojos, where I used to wear a judogi.