|
Mathematica Policy Research (United States)
50
|
National Bureau of Economic Research (United States)
21
|
Center for International Forestry Research (Indonesia)
20
|
|
International Institute for Applied Systems Analysis (Austria)
16
|
Brookings Institution (United States)
6
|
RAND Corporation (United States)
3
|
|
American Enterprise Institute (United States)
2
|
Basque Centre for Climate Change (Spain)
2
|
Urban Institute (United States)
2
|
|
Centre for Economic Policy Research (United Kingdom)
1
|
Peterson Institute for International Economics (United States)
1
|
Resources for the Future (United States)
1
|
|
World Resources Institute (United States)
1
|
