1. University of Maryland, College Park, MD, USA.
2. University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
3. Harvard Kennedy School and Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA, USA.
4. University of Glasgow, Glasgow, Scotland, UK.
5. University of Michigan, Ann Arbor, MI, USA.
6. Independent scholar.
7. University of Connecticut, Mansfield, CT, USA.