|
Agora Energiewende (Germany)
2
|
French Institute of International Relations (France)
2
|
Wuppertal Institute for Climate, Environment and Energy (Germany)
2
|
|
American Enterprise Institute (United States)
1
|
Brookings Institution (United States)
1
|
National Bureau of Economic Research (United States)
1
|
|
RAND Corporation (United States)
1
|
