|
Brookings Institution (United States)
24
|
James A. Baker III Institute for Public Policy (United States)
24
|
Overseas Development Institute (United Kingdom)
18
|
|
RAND Corporation (United States)
18
|
International Institute for Environment and Development (United Kingdom)
10
|
Urban Institute (United States)
9
|
|
Mathematica Policy Research (United States)
5
|
National Bureau of Economic Research (United States)
5
|
American Enterprise Institute (United States)
4
|
|
Basque Centre for Climate Change (Spain)
3
|
Center for Strategic and International Studies (United States)
3
|
Atlantic Council (United States)
2
|
|
Centre for Economic Policy Research (United Kingdom)
2
|
Chatham House (United Kingdom)
2
|
Institute for European Environmental Policy (United Kingdom)
2
|
|
Agora Energiewende (Germany)
1
|
German Development Institute (Germany)
1
|
International Institute for Strategic Studies (United Kingdom)
1
|
|
International Institute for Sustainable Development (Canada)
1
|
World Resources Institute (United States)
1
|
