“Buffering Volatility: A Study on the Limits of Germany's Energy Revolution”, CESifo Working Paper No. 5950, June 2016.
"Target Balances and the German Financial Account in Light of the European Balance-of-Payments Crisis" (together with Timo Wollmershäuser), CESifo Working Paper No. 4051, 2012 (Download, 488 KB).
"Pareto Optimality in the Extraction of Fossil Fuels and the Greenhouse Effect: A Note“, CESifo Working Paper No. 2083, 2007 (Download, 279 KB), NBER Working Paper Nr. 13453, 2007.
"Participation, Capitalization and Privatization, Report on Bolivia's Current Political Privatization Debate“ (together with Gerlinde Sinn), CESifo Working Paper No. 49, 1993 (Download, 3.6 MB).