|
Overseas Development Institute (United Kingdom)
335
|
James A. Baker III Institute for Public Policy (United States)
157
|
Brookings Institution (United States)
151
|
|
National Bureau of Economic Research (United States)
149
|
RAND Corporation (United States)
111
|
International Institute for Environment and Development (United Kingdom)
63
|
|
Urban Institute (United States)
61
|
Mathematica Policy Research (United States)
50
|
International Institute for Applied Systems Analysis (Austria)
32
|
|
Centre for Economic Policy Research (United Kingdom)
29
|
Atlantic Council (United States)
25
|
Earth Institute (United States)
25
|
|
Center for Strategic and International Studies (United States)
24
|
American Enterprise Institute (United States)
19
|
Danish Institute for International Studies (Denmark)
14
|
|
World Resources Institute (United States)
14
|
Center for American Progress (United States)
13
|
The Green Political Foundation (Germany)
11
|
|
Science Policy Research Unit (United Kingdom)
9
|
Fraser Institute (Canada)
7
|
