1. Harvard Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
2. Department of Sociology, Bridgewater State University, Bridgewater, MA, USA
3. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
4. MIT Sloan School of Management, Cambridge, MA, USA
5. Faculty of Social Sciences/Psychology, University of Tampere, Tampere, Finland