1. Department of Economics, Brigham Young University, Provo, Utah, USA
2. MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK
3. Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington, USA
4. Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
5. Center for the Economics of Human Development, University of Chicago, Chicago, Illinois, USA
6. Cornerstone Research, San Francisco, California, USA
7. Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
8. Health Canada, Ottawa, Ontario, Canada