First Author:   Maria Eduarda Perpétuo Federal University of Rio de Janeiro - Economics Institute - Quantitative Economics Group dudabperpetuo@gmail.com   Rua Almirante Tamandaré 42/60 - Flamengo Rio de Janeiro, 22210-060, Brazil   +55 21 98757 5818(Phone) +55 21 98757 5818(Fax)