First Author:   James P Henson Department of Economics, Georgia State University jhenson6@student.gsu.edu   Atlanta, 30303, U.S.A   678-939-4978(Phone) 678-939-4978(Fax) Second Author: John Gibson Department of Economics, Georgia State University jgibson25@gsu.edu   Atlanta, 30303, U.S.A   404-413-0202(Phone)