|
American Enterprise Institute (United States)
62035
|
Brookings Institution (United States)
35381
|
National Bureau of Economic Research (United States)
30845
|
|
Competitive Enterprise Institute (United States)
30360
|
Centre for Economic Policy Research (United Kingdom)
27403
|
Center for Strategic and International Studies (United States)
16888
|
|
International Institute for Applied Systems Analysis (Austria)
15269
|
Atlantic Council (United States)
13189
|
Overseas Development Institute (United Kingdom)
12691
|
|
Center for American Progress (United States)
12206
|
Adam Smith Institute (United Kingdom)
11405
|
Urban Institute (United States)
10600
|
|
Carnegie Endowment for International Peace (United States)
9287
|
United Nations Environment Programme (Kenya)
8401
|
International Institute for Environment and Development (United Kingdom)
8255
|
|
Chatham House (United Kingdom)
7779
|
RAND Corporation (United States)
7622
|
Center for International Forestry Research (Indonesia)
7215
|
|
Mathematica Policy Research (United States)
6918
|
James A. Baker III Institute for Public Policy (United States)
5778
|
