Working Papers (unpublished)

Grimme, Chr., Lehmann, R. and M. Noeller (2018). Forecasting Imports with Information from Abroad.

CESifo Working Paper No. 7079, Status: Submitted. RePEc Link


Garnitz, J., Lehmann, R. and K. Wohlrabe (2017). Forecasting GDP all over the World: Evidence from Comprehensive Survey Data.

MPRA Paper No. 81772, Status: Revise and Resubmit Applied Economics. RePEc Link


Frei, X., Langer, S., Lehmann, R. and F. Roesel (2017). Electoral Externalities in Federations - Evidence from German Opinion Polls.

CESifo Working Paper No. 6375, Status: Submitted. RePEc Link


Lehmann, R. (2015). Survey-based indicators vs. hard data: What improves export forecasts in Europe?

ifo Working Paper No. 196, Status: Submitted. RePEc Link

Papers in Preparation (mimeo)

Business Cycle Volatility of the German 'Mittelstand' (together with M. Berlemann and V. Jahn).


Does Germany Cheat with its Macroeconomic Projections? A Comparison to an Independent Forecasting Institution

(together with T. Wollmershäuser).


Economic Forecasting and Spatial Effects: An Assessment for German Districts (together with J. A. Nauerth).