1. Department of Sociology, Louisiana State University, Baton Rouge, LA, USA
2. Community and Environmental Sociology, Center for Demography and Ecology, University of Wisconsin–Madison, Madison, WI, USA
3. Department of Sociology, Center for Demography and Ecology, University of Wisconsin–Madison, Madison, WI, USA
4. Population Council, Washington, DC, USA
5. Department of Experimental Statistics, Louisiana State University, Baton Rouge, LA, USA