|
American Enterprise Institute (United States)
102
|
National Bureau of Economic Research (United States)
97
|
Centre for Economic Policy Research (United Kingdom)
93
|
|
Urban Institute (United States)
60
|
RAND Corporation (United States)
50
|
Brookings Institution (United States)
40
|
|
International Institute for Environment and Development (United Kingdom)
39
|
Overseas Development Institute (United Kingdom)
30
|
Mathematica Policy Research (United States)
24
|
|
Wuppertal Institute for Climate, Environment and Energy (Germany)
21
|
Fondazione Eni Enrico Mattei (Italy)
14
|
Center for American Progress (United States)
11
|
|
Atlantic Council (United States)
10
|
Carnegie Endowment for International Peace (United States)
9
|
World Resources Institute (United States)
8
|
|
Resources for the Future (United States)
7
|
International Institute for Sustainable Development (Canada)
5
|
Copenhagen Consensus Center (Denmark)
4
|
|
Center for Strategic and International Studies (United States)
3
|
Centre for Energy Policy and Economics (Switzerland)
3
|
