Not so long ago Brazil was THE star performer in the emerging market galaxy thanks to global demand for its commodity resources. In 2005 commodity exports totalled $118 billion - seven years later they more than doubled to $256 billion. However a weak global economy and falling Chinese growth has marked the end of the dance for Brazil. With a credit rating below junk status and GDP tipped to shrink by as much as 4% this year, Brazil is now the sick man of the G20. As President Dilma Roussef battles to hold the country together, her own grip on power is looking increasingly fragile as she leads a government ripped apart by scandal and lost credibility. Where does Brazil go from here? Professor Alfredo Saad Filho of London University, and Share Radio's regular economics commentator Professor John Weeks joined Juliette Foster in the studio to discuss the issues further.