| 1 (1) | National Bureau of Economic Research | USA |  | |
| 2 (11) | Institut Zur Zukunft der Arbeit | DEU | | |
| 3 (17) | Centre for Economic Policy Research | GBR | | |
| 4 (18) | CESifo Group | DEU | | |
| 5 (62) | International Monetary Fund | USA | | |
| 6 (118) | International Food Policy Research Institute United States | USA | | |
| 7 (304) | Organisation for Economic Co-operation and Development | FRA | | |
| 8 (380) | International Maize and Wheat Improvement Center Mexico | MEX | | |
| 9 (473) | Santa Fe Institute | USA | | |
| 10 (486) | RAND Corp | USA | |
