TY - JOUR TI - The informational content of credit ratings in Brazil: an event study PY - 2013 AU - Murcia, Flávia Cruz de Souza AU - Murcia, Fernando Dal-Ri AU - Borba, José Alonso T2 - Revista Brasileira de Finanças SN - 1984-5146 UR - http://bibliotecadigital.fgv.br/ojs/index.php/rbfin/article/viewFile/9264/17063 PP - Rio de Janeiro VL - 11 IS - 4 SP - 503-526 ER -