|
Centre for European Policy Studies (Belgium)
151
|
Brookings Institution (United States)
10
|
International Institute for Applied Systems Analysis (Austria)
9
|
|
Centro Euro-Mediterraneo sui Cambiamenti Climatici (Italy)
6
|
National Bureau of Economic Research (United States)
5
|
Fondazione Eni Enrico Mattei (Italy)
3
|
|
Konrad Adenauer Foundation (Germany)
1
|
