1. Department of Sociology, University of Oxford, 42-43 Park End Street, Oxford OX1 1JD, England.
2. Nuffield College, New Road, Oxford OX1 1NF, England.
3. Leverhulme Centre for Demographic Science, University of Oxford, 42-43 Park End Street, Oxford OX1 1JD, England.
4. Research Institute for Compassionate Economics, 472 Old Colchester Rd., Amston, CT 06231, USA.
5. Department of Demography and Sociology, University of California, Berkeley, 310 Social Sciences Building, Berkeley, CA 94720, USA.
6. Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter (550), Woodstock Road, Oxford OX2 6GG, England.
7. Department of Economics, University of Texas at Austin, 2225 Speedway, Austin, TX 78712, USA.
8. Department of Sociology, Emory University, 1555 Dickey Dr, Atlanta, GA 30322, USA.
9. Paris School of Economics, 48 Boulevard Jourdan, 75014 Paris, France.
10. TUM School of Medicine and Health, Technical University of Munich, Georg-Brauchle-Ring 60, 80992 Munich, Germany.
11. Heidelberg Institute of Global Health, Heidelberg University, Im Neuenheimer Feld 130.3, 69120 Heidelberg, Germany.
12. Department of Economics, Hunter College (CUNY), 695 Park Ave., New York, NY 10065, USA.
13. CUNY Institute for Demographic Research, 135 E. 22nd St., New York, NY 10010, USA.