1. Department of Economics, University of Hohenheim, Germany
2. Department of Economics, University of Göttingen, Germany
3. KOF Swiss Economic Institute, ETH Zürich, Switzerland
4. Kiel Institute China Initiative, Kiel Institute for the World Economy, Germany
5. CESifo, Munich, Germany
6. AidData, Global Research Institute, William & Mary, Williamsburg, VA, USA
7. Center for Global Development, Washington DC, USA