|
Brookings Institution (United States)
12
|
RAND Corporation (United States)
5
|
Mathematica Policy Research (United States)
4
|
|
Carnegie Endowment for International Peace (United States)
2
|
Centro Euro-Mediterraneo sui Cambiamenti Climatici (Italy)
2
|
National Bureau of Economic Research (United States)
2
|
|
American Enterprise Institute (United States)
1
|
Center for Development Research (Germany)
1
|
Institute for Applied Ecology (Germany)
1
|
|
Potsdam Institute for Climate Impact Research (Germany)
1
|
Urban Institute (United States)
1
|
