1. University of Massachusetts Amherst, 412 N. Pleseant St., Amherst, MA 01002 (email: )
2. University of Massachusetts Amherst, 1030 Thompson Hall, Amherst, MA 01003 (email: )
3. Office of Tax Analysis, U.S. Treasury Department, 1500 Pennsylvania Ave NW, Washington, DC 20220 (email: )
4. Department of Economics, 3114 Tydings Hall, University of Maryland at College Park, College Park, MD 20743 (email: )