Marcio Telles Portal Federal Institute of Education, Science and Technology of Rio Grande do Sul   Av. Getúlio Vargas, 603 apto 303 Osório, Rio Grande do Sul 95520000 Brazil   marcio.portal@osorio.ifrs.edu.br     Biographical Sketch: PhD in Finance, Msc Accouting. Professor of Finance at Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul.   Primary Research Focus: Corporate Finance and Governance, Accounting and Law.   JEL Areas: G0 : Financial Economics: General G3 : Corporate Finance and Governance: General