First Author:   Brad Sturgill Sewanee: The University of the South bssturgi@sewanee.edu   Department of Economics, Sewanee: The University of the South, 735 University Avenue Sewanee, 37383, USA   931-598-1403(Phone) 931-598-1403(Fax) Second Author: Hernando Zuleta Universidad de Los Andes h.zuleta@uniandes.edu.co   Department of Economics, Carrera 1 Nº 18A-70 · Bloque W, piso 9. Bogotá, Colombia