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, National University of Colombia - Department of Economics, 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

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

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