@inproceedings{inproceedingsc82d9447,
title   = {Investment grade, asset prices and changes in the source of systematic risk},
author = {Giovannetti, Bruno Cara and Rodrigues Júnior, Mauro and Ros, Eduardo De Nardi},
year = {2014},
publisher = {Sociedade Brasileira de Econometria},
booktitle   = {Encontro Brasileiro de Econometria}
}