|
Urban Institute (United States)
84
|
Brookings Institution (United States)
68
|
Overseas Development Institute (United Kingdom)
62
|
|
Environment for Development Initiative (Sweden)
55
|
Center for American Progress (United States)
51
|
Center for Strategic and International Studies (United States)
49
|
|
Mathematica Policy Research (United States)
49
|
National Bureau of Economic Research (United States)
49
|
Institute for Global Environmental Strategies (Japan)
42
|
|
Centre for Economic Policy Research (United Kingdom)
25
|
International Institute for Environment and Development (United Kingdom)
14
|
Resources for the Future (United States)
13
|
|
Property and Environment Research Center (United States)
11
|
International Institute for Sustainable Development (Canada)
9
|
American Enterprise Institute (United States)
8
|
|
Science Policy Research Unit (United Kingdom)
8
|
Institute for European Environmental Policy (United Kingdom)
7
|
Center for Education Policy Analysis (United States)
6
|
|
RAND Corporation (United States)
4
|
Centre for Environmental Economics and Policy in Africa (South Africa)
3
|
