1. Stockholm University, Research Institute of Industrial Economics, Max Planck Institute for Collective Goods, National Bureau of Economic Research, and Bureau for Research in the Economic Analysis of Development
2. University of California San Diego, National Bureau of Economic Research, and Bureau for Research in the Economic Analysis of Development
3. University Medical Centre Groningen
4. University of Nairobi and Africa Mental Health Research and Training Foundation
5. University of British Columbia, National Bureau of Economic Research, Bureau for Research in the Economic Analysis of Development, and Canadian Institute for Advanced Research