|
RAND Corporation (United States)
6
|
Mathematica Policy Research (United States)
4
|
Urban Institute (United States)
4
|
|
National Bureau of Economic Research (United States)
3
|
American Enterprise Institute (United States)
2
|
Potsdam Institute for Climate Impact Research (Germany)
2
|
|
Brookings Institution (United States)
1
|
Centre for Economic Policy Research (United Kingdom)
1
|
Centro Euro-Mediterraneo sui Cambiamenti Climatici (Italy)
1
|
