1. Health Nutrition and Population Global Practice, World Bank Group, Lusaka, Zambia
2. Heidelberg Institute of Global Health, Heidelberg University, Heidelberg, Germany
3. Abt Associates Inc., Lilongwe, Malawi
4. Health Nutrition and Population Global Practice, World Bank Group, Pretoria, South Africa
5. Macroeconomics, Trade and Investment Global Practice, World Bank Group, Lilongwe, Malawi
6. Centre for Health Economics, University of York, York, United Kingdom
7. Health Nutrition and Population Global Practice, World Bank Group, Washington, DC, USA