|
National Bureau of Economic Research (United States)
55
|
Institute for Global Environmental Strategies (Japan)
46
|
Overseas Development Institute (United Kingdom)
42
|
|
International Institute for Environment and Development (United Kingdom)
29
|
Urban Institute (United States)
22
|
Brookings Institution (United States)
15
|
|
Center for Strategic and International Studies (United States)
14
|
RAND Corporation (United States)
14
|
International Institute for Applied Systems Analysis (Austria)
13
|
|
World Resources Institute (United States)
13
|
Center for International Forestry Research (Indonesia)
10
|
American Enterprise Institute (United States)
8
|
|
Centre for Economic Policy Research (United Kingdom)
5
|
Centre for International Governance Innovation (Canada)
5
|
Center for American Progress (United States)
4
|
|
German Development Institute (Germany)
4
|
Mathematica Policy Research (United States)
4
|
Centre for European Policy Studies (Belgium)
2
|
|
International Institute for Sustainable Development (Canada)
2
|
African Wildlife Foundation (Kenya)
1
|
