1. Deutsche Bundesbank, Research Centre, Frankfurt, Germany; and Halle Institute for Economic Research – Member of the Leibniz Association, Department of Structural Change and Productivity, Halle (Saale), Germany.
2. Halle Institute for Economic Research – Member of the Leibniz Association, Centre for Evidence-based Policy Consulting, Halle (Saale), Germany.
3. Faculty of Law and Economics, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
4. Faculty of Law and Economics, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany; Center for Economics of Materials, Martin-Luther University Halle-Wittenberg and Fraunhofer Institute for Microstructure of Materials and Materials, Halle (Saale), Germany; and University of International Business and Economics (UIBE), Beijing, China.