|
National Bureau of Economic Research (United States)
10
|
Centre for Economic Policy Research (United Kingdom)
9
|
RAND Corporation (United States)
9
|
|
World Resources Institute (United States)
6
|
Overseas Development Institute (United Kingdom)
3
|
Resources for the Future (United States)
2
|
|
Bruegel (Belgium)
1
|
Center for Education Policy Analysis (United States)
1
|
Environment for Development Initiative (Sweden)
1
|
|
Fondazione Eni Enrico Mattei (Italy)
1
|
Institute for European Environmental Policy (United Kingdom)
1
|
International Institute for Sustainable Development (Canada)
1
|
|
Mathematica Policy Research (United States)
1
|
Urban Institute (United States)
1
|
