| 1 (66) | National Bureau of Economic Research | USA |  | |
| 2 (216) | Institut Zur Zukunft der Arbeit | DEU | | |
| 3 (338) | Centre for Economic Policy Research | GBR | | |
| 4 (426) | CESifo Group | DEU | | |
| 5 (596) | International Monetary Fund | USA | | |
| 6 (609) | Organisation for Economic Co-operation and Development | FRA | | |
| 7 (701) | RAND Corp | USA | | |
| 8 (784) | Fondazione Bruno Kessler | ITA | | |
| 9 (800) | Chinese Research Academy of Environmental Sciences | CHN | | |
| 10 (852) | Institute of Electrical and Electronics Engineers * | MUL | |
