|
Mathematica Policy Research (United States)
8
|
National Bureau of Economic Research (United States)
8
|
Centre for Economic Policy Research (United Kingdom)
5
|
|
Konrad Adenauer Foundation (Germany)
4
|
Environment for Development Initiative (Sweden)
2
|
Institute for European Environmental Policy (United Kingdom)
2
|
|
Urban Institute (United States)
2
|
German Development Institute (Germany)
1
|
Institute for Ecological Economy Research (Germany)
1
|
|
Third Generation Environmentalism (United Kingdom)
1
|
