| 1 (3) | National Bureau of Economic Research | USA |  |
| 2 (13) | Institut Zur Zukunft der Arbeit | DEU | |
| 3 (15) | Centre for Economic Policy Research | GBR | |
| 4 (21) | CESifo Group | DEU | |
| 5 (29) | World Bank, United States | USA | |
| 6 (71) | International Monetary Fund | USA | |
| 7 (177) | International Food Policy Research Institute United States | USA | |
| 8 (444) | UNU Maastricht Economic and Social Research Institute on Innovation and Technology | NLD | |
| 9 (584) | Centres de Recerca de Catalunya * | ESP | |
| 10 (640) | Organisation for Economic Co-operation and Development France | FRA | |
| 11 (855) | Food and Agriculture Organisation of the United Nations, Italy | ITA | |
| 12 (1054) | The Nature Conservancy, USA | USA | |
| 13 (1115) | Santa Fe Institute | USA | |
| 14 (1147) | RAND Corp | USA | |
| 15 (1214) | Dutch Scientific Research Institutes * | NLD | |
| 16 (1240) | Rede de Quimica e Tecnologia | PRT | |
| 17 (1527) | Institute for Systems and Computer Engineering, Technology and Science | PRT | |
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