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...

This study data are based on several sources including official documents that are statistical or economical, as well as specialized literature and fieldwork investigations in collaboration with national university research teams. The present reflection reports on few western African countries...