|
National Bureau of Economic Research (United States)
423
|
Centre for Economic Policy Research (United Kingdom)
315
|
Brookings Institution (United States)
276
|
|
Center for Strategic and International Studies (United States)
210
|
Urban Institute (United States)
198
|
RAND Corporation (United States)
136
|
|
Fraser Institute (Canada)
126
|
Mathematica Policy Research (United States)
114
|
American Enterprise Institute (United States)
97
|
|
Energy Policy Research Group (United Kingdom)
50
|
Overseas Development Institute (United Kingdom)
49
|
International Institute for Environment and Development (United Kingdom)
45
|
|
Resources for the Future (United States)
45
|
Carnegie Endowment for International Peace (United States)
44
|
Centre for International Governance Innovation (Canada)
25
|
|
Chatham House (United Kingdom)
22
|
Center for Climate and Energy Solutions (United States)
19
|
Environment for Development Initiative (Sweden)
15
|
|
German Development Institute (Germany)
15
|
Science Policy Research Unit (United Kingdom)
14
|
