National University of Colombia, National University of Colombia - Department of Economics, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia - Department of Economics, National University of Colombia - Department of Economics, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia, Universidad Nacional de Colombia, National University of Colombia, National University of Colombia, National University of Colombia, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia, Universidad Nacional de Colombia, National University of Colombia, Students, Facultad de Ciencias Económicas - Universidad Nacional de Colombia, National University of Colombia - Department of Economics, Institución Universitaria Politécnico Grancolombiano, National University of Colombia, National University of Colombia - Management and Accounting School, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia, National University of Colombia, National University of Colombia - Department of Economics, National University of Colombia, Universidad Externado de Colombia, National University of Colombia, National University of Colombia - Facultad de Ciencias Económicas, National University of Colombia - Department of Economics and Universidad del Rosario

National University of Colombia and Government of the Republic of Colombia - Dirección de Impuestos y Aduanas Nacionales de Colombia

National University of Colombia and Government of the Republic of Colombia - Dirección de Impuestos y Aduanas Nacionales de Colombia

National University of Colombia

National University of Colombia - Department of Economics, National University of Colombia - Management and Accounting School, affiliation not provided to SSRN, National University of Colombia - Department of Economics, National University of Colombia - Department of Economics, National University of Colombia - School of Management and Accounting, National University of Colombia - Department of Economics, National University of Colombia, National University of Colombia - Department of Economics, National University of Colombia, National University of Colombia, National University of Colombia - Department of Economics, National University of Colombia - Department of Economics and National University of Colombia - Department of Economics

National University of Colombia

National University of Colombia

Universidad del Rosario, National University of Colombia, National University of Colombia, National University of Colombia - Department of Economics, National University of Colombia - Department of Economics, National University of Colombia, National University of Colombia, National University of Colombia, National University of Colombia, National University of Colombia and National University of Colombia - Department of Economics

National University of Colombia

National University of Colombia

National University of Colombia

National University of Colombia

National University of Colombia

National University of Colombia

National University of Colombia, National University of Colombia, National University of Colombia, Universidad Nacional de Colombia, Universidad Externado de Colombia, National University of Colombia, National University of Colombia, National University of Colombia, National University of Colombia, National University of Colombia, National University of Colombia - Department of Economics, National University of Colombia, National University of Colombia, National University of Colombia - Department of Economics and Universidad del Rosario