A calmer political outlook for Brazil, a modest return to profit for the national oil company and the distractions of the Olympic Games can all give the impression that the Petrobras corruption scandals have run their course and less turbulent times are around the corner.

President Dilma Rousseff’s trial for impeachment, due to begin on 25 August, seems to be a forgone conclusion, and her replacement, Acting President Michel Temer, seems to have restored some confidence on the markets with his more orthodox economic discourse.

These