Brazil business world bets on Rousseff exit (stock shots) With Brazil, Latin America's largest economy, plunged in its deepest recession in 25 years, business chiefs have exuberantly welcomed new impeachment proceedings against President Dillma Rousseff, who is accused of manipulating the government's accounts. The Sao Paulo stock exchange leapt 6.6 percent Thursday, its biggest gain in seven years, after the latest series of damaging setbacks for Rousseff. IMAGES of the Sao Paulo stock exchange