|
Centre for Economic Policy Research (United Kingdom)
5
|
Mathematica Policy Research (United States)
4
|
International Institute for Environment and Development (United Kingdom)
3
|
|
German Development Institute (Germany)
2
|
Brookings Institution (United States)
1
|
International Institute for Sustainable Development (Canada)
1
|
|
National Bureau of Economic Research (United States)
1
|
Peterson Institute for International Economics (United States)
1
|
