|
RAND Corporation (United States)
52
|
National Bureau of Economic Research (United States)
44
|
Institute for Energy Research (United States)
24
|
|
Brookings Institution (United States)
22
|
The Green Political Foundation (Germany)
15
|
Centro Euro-Mediterraneo sui Cambiamenti Climatici (Italy)
14
|
|
Mathematica Policy Research (United States)
14
|
Centre for Economic Policy Research (United Kingdom)
7
|
Atlantic Council (United States)
6
|
|
Center for Strategic and International Studies (United States)
6
|
Carnegie Endowment for International Peace (United States)
5
|
Center for Development Research (Germany)
5
|
|
Basque Centre for Climate Change (Spain)
4
|
Center for Energy and Environmental Policy Research (United States)
4
|
Resources for the Future (United States)
4
|
|
American Enterprise Institute (United States)
2
|
Centre for International Governance Innovation (Canada)
2
|
Environment for Development Initiative (Sweden)
1
|
|
Fondazione Eni Enrico Mattei (Italy)
1
|
Fraser Institute (Canada)
1
|
