The study verifies, between march 2005 and march 2006, if there is any difference between the stock yields of a sample of companieslisted in Bovespa that adopt the principles of Corporate Governance, in different levels, in relation to the companies of the traditionalmarket. The data were...

The authors aim at obtaining a simple econometric model that allows to build a confidence interval for the dispersion of the bids made by financial institutions at the Central Bank weekly auctions of short term securities in Brazil. Under competitive conditions it is assumed that the bids'...