The Brazilian real fluctuated between gains and losses during foreign exchange trading yesterday (September 28th) as investors weighed falling metal prices against optimistic growth projections.Speaking to Bloomberg, Win Thin, a senior currency strategist at Brown Brothers Harriman, explained that the market was looking for a firm direction amid mixed short and longer-term projections for economic performance in the country.A central bank survey of more than 100 economists released yesterday revealed a median forecast of economic growth of 4.5 per cent next year, providing support for long positions on the currency."Numbers like these do reinforce the outlook for investors and, therefore, Brazil’s attractiveness in the long term," said Alvise Marino, an emerging market analyst at the fixed-income research firm IDEAglobal.High-growth emerging market currencies such as the real suffered last week as concerns about the health of the global economy re-emerged, with statements from world leaders at the G20 summit encouraging traders to think about stability and performance in a post-stimulus environment.