Public Debt and Fiscal Rules
Discussion with Prof. Bofinger in the Wirtschaftsdienst about the debt brake (2019), only available in German: "Schuldenbremse: von der statischen 'schwarzen Null' zur dynamischen 'schwarzen Null'"
Guest article at Social Europe about the "black zero" of March 4, 2019: "Time for a red shift from Germany's 'black zero'"
Minority vote on financial policy in the 2017/18 annual report of the German Council of Economic Experts: "Solide Finanzpolitik gerade in guten Zeiten – Eine andere Meinung"