|
National Bureau of Economic Research (United States)
941
|
Brookings Institution (United States)
371
|
Konrad Adenauer Foundation (Germany)
252
|
|
Center for Strategic and International Studies (United States)
200
|
Urban Institute (United States)
175
|
Korea Development Institute (Republic of Korea)
143
|
|
Overseas Development Institute (United Kingdom)
132
|
Center for American Progress (United States)
119
|
Institute of Energy Economics, Japan (Japan)
112
|
|
International Institute for Environment and Development (United Kingdom)
96
|
American Enterprise Institute (United States)
89
|
Institute for Global Environmental Strategies (Japan)
80
|
|
Korea Evironment Institute (Republic of Korea)
80
|
Wuppertal Institute for Climate, Environment and Energy (Germany)
77
|
International Institute for Applied Systems Analysis (Austria)
70
|
|
Atlantic Council (United States)
59
|
Civic Exchange (China)
55
|
Center for Environmental Research (Germany)
50
|
|
Environment for Development Initiative (Sweden)
48
|
Fraser Institute (Canada)
47
|
