1. Department of Sociology, Indiana University, Ballantine Hall 744, 1020 E. Kirkwood Avenue, Bloomington, IN 47405-7103, USA
2. Department of Sociology, The Ohio State University, 238 Townshend Hall, 1885 Neil Avenue Mall, Columbus, OH 43210, USA
3. Department of Sociology, Purdue University, 700 W State Street, West Lafayette, IN 47907, USA