|
Overseas Development Institute (United Kingdom)
30
|
Carnegie Endowment for International Peace (United States)
4
|
National Bureau of Economic Research (United States)
4
|
|
Centre for Economic Policy Research (United Kingdom)
3
|
Brookings Institution (United States)
2
|
International Institute for Environment and Development (United Kingdom)
2
|
|
Mathematica Policy Research (United States)
1
|
Science Policy Research Unit (United Kingdom)
1
|
