|
Centre for Economic Policy Research (United Kingdom)
17
|
National Bureau of Economic Research (United States)
10
|
Wuppertal Institute for Climate, Environment and Energy (Germany)
6
|
|
World Resources Institute (United States)
5
|
Science Policy Research Unit (United Kingdom)
2
|
American Enterprise Institute (United States)
1
|
|
Centre for European Policy Studies (Belgium)
1
|
Institute for European Environmental Policy (United Kingdom)
1
|
Institute of Energy Economics, Japan (Japan)
1
|
|
International Institute for Applied Systems Analysis (Austria)
1
|
Overseas Development Institute (United Kingdom)
1
|
RAND Corporation (United States)
1
|
