| 1 (1) | National Bureau of Economic Research | USA |  | |
| 2 (13) | Institut Zur Zukunft der Arbeit | DEU | | |
| 3 (16) | Centre for Economic Policy Research | GBR | | |
| 4 (23) | CESifo Group | DEU | | |
| 5 (81) | International Monetary Fund | USA | | |
| 6 (160) | Food and Agriculture Organization of the United Nations Italy | ITA | | |
| 7 (339) | Organisation for Economic Co-operation and Development | FRA | | |
| 8 (404) | James Hutton Institute | GBR | | |
| 9 (407) | Santa Fe Institute | USA | | |
| 10 (529) | RAND Corp | USA | | |
| 11 (696) | Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH | DEU | |
