Berthold Ulrich Wigger Karlsruhe Institute of Technology   Lehrstuhl Finanzwissenschaft Kronenstrasse 24 Karlsruhe, 76131 Germany   berthold.wigger@kit.edu   fiwi.iww.kit.edu           JEL Areas: D8 : Information, Knowledge, and Uncertainty: General H6 : National Budget, Deficit, and Debt: General