|
National Bureau of Economic Research (United States)
259
|
Centre for Economic Policy Research (United Kingdom)
174
|
Stockholm Environment Institute (Sweden)
131
|
|
Center for Strategic and International Studies (United States)
89
|
Hague Centre for Strategic Studies (Netherlands)
76
|
American Enterprise Institute (United States)
70
|
|
Mathematica Policy Research (United States)
70
|
Brookings Institution (United States)
69
|
Science Policy Research Unit (United Kingdom)
67
|
|
RAND Corporation (United States)
51
|
Urban Institute (United States)
42
|
The Green Political Foundation (Germany)
34
|
|
Center for Environmental Research (Germany)
27
|
International Institute for Environment and Development (United Kingdom)
17
|
Wuppertal Institute for Climate, Environment and Energy (Germany)
15
|
|
Earth Institute (United States)
14
|
Fondazione Eni Enrico Mattei (Italy)
12
|
Program on Energy and Sustainable Development (United States)
12
|
|
Center for American Progress (United States)
11
|
Institute for Ecological Economy Research (Germany)
10
|
