The Buhari government has a long way to go in its anti-corruption battle as seen in the latest Transparency International rankings.
Public sector corruption is a major challenge to doing business in Africa and players are mostly ill-equipped to deal with it. Business schools can teach the skills to tackle it.
By exposing, prosecuting and sentencing Brazil's corrupt politicians, prosecutors, judges and citizens are draining the swamp that has overwhelmed the country for so long.
In Africa, commercial activities are the largest component of illicit financial flows. This is followed by organised crime and then public sector corruption.