National Bureau of Economic Research (United States)
4
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Centro Euro-Mediterraneo sui Cambiamenti Climatici (Italy)
3
|
American Enterprise Institute (United States)
2
|
Center for Education Policy Research (United States)
1
|
Center for Environmental Research (Germany)
1
|
Potsdam Institute for Climate Impact Research (Germany)
1
|
RAND Corporation (United States)
1
|