|
RAND Corporation (United States)
74
|
National Bureau of Economic Research (United States)
11
|
Mathematica Policy Research (United States)
8
|
|
Centre for Economic Policy Research (United Kingdom)
2
|
German Development Institute (Germany)
2
|
Science Policy Research Unit (United Kingdom)
2
|
|
American Enterprise Institute (United States)
1
|
Brookings Institution (United States)
1
|
Centre for International Governance Innovation (Canada)
1
|
|
Overseas Development Institute (United Kingdom)
1
|
Urban Institute (United States)
1
|
