Chairs of Statistics and Econometrics

Dr. Yabibal M. Walle


  • Postdoctoral researcher at the Chair of Econometrics (Prof. Dr. Helmut Herwartz), since April 2013


  • Research interests:


  • Development economics: the finance-growth nexus; financial literacy and gender; income inequality and economic growth
  • Applied econometrics: panel unit root and cointegration testing; Structural Vectorautoregressions


  • Publications in refereed journals:


  • Heteroskedasticity robust panel unit root testing under variance breaks in pooled regressions (with Helmut Herwartz and Florian Siedenburg), Econometric Reviews, 2016, 35 (5):727-750.
  • Openness and the finance-growth nexus (with Helmut Herwartz), Journal of Banking & Finance, 2014, 48: 235-247.
  • Revisiting the finance-growth nexus in Sub-Saharan Africa: results from error correction-based panel cointegration tests, African Development Review, 2014, 26 (2): 310-321.
  • Determinants of the link between financial and economic development: evidence from a functional coefficient model (with Helmut Herwartz), Economic Modelling, 2014, 37: 417-427.
  • Where enterprise leads, finance follows. In-sample and out-of-sample evidence on the causal relation between finance and growth (with Matthias Hartmann and Helmut Herwartz), Economics Bulletin, 2012, 32 (1): 871-882.


  • Working papers:


  • State dependence in the finance-growth nexus: a functional coefficient approach (with Helmut Herwartz), Center for European, Governance and Economic Development Research Discussion Papers No. 156, Georg-August-Universität Göttingen.
  • Tourist flows and its determinants in Ethiopia, Ethiopian Development Research Institute Working Paper 001, 2010.


  • Teaching:


  • Summer term 2017
    Econometrics I
    Financial Liberalization, Financial Development and Economic Growth (seminar)
  • Winter term 2016/2017
    Development Macroeconometrics
  • Summer term 2016
    Econometrics I
    Financial Liberalization, Financial Development and Economic Growth (seminar)
  • Winter term 2015/2016
    Development Econometrics
  • Summer term 2015
    Econometrics I
  • Winter term 2014/2015
    Development Econometrics
  • Summer term 2014
    Econometrics I
  • Winter term 2013/2014
    Development Econometrics
    Mathematics (assistant)
  • 2010-12 (University of Kiel)
    ``Econometrical Preparatory Course" (yearly 15 hours) for new doctoral students of the Doctoral Program ``Quantitative Economics."
  • November 2007- June 2009 (Addis Ababa University) Microeconomics, Macroeconomics, Monetary Economics and Policy, Introduction to Econometrics (all BA level courses).


  • Educational background:


  • 2009 – 2013: Doctor scientiarum politicarum ( Dr. sc. pol.), Quantitative Economics, Christian-Albrechts-University Kiel
  • 2005 – 2007: Master of Science (M.Sc.), Economic Policy Analysis, Addis Ababa University
  • 2000 – 2005: Bachelor of Arts (B.A.), Economics, Addis Ababa University