1月13日，巴西央行总裁辞职，其货币雷亚尔宣布取消原先的汇率窄幅波动区间，兑美元汇率从1．12-1．20扩大到1．22-1．32．当日雷亚尔贬值9％，1月15日巴西央行宣布雷亚尔自由浮动，1月18日巴西正式采用浮动汇率制，南美大国巴西的金融波动成为世界注目的焦点。巴西的雷亚尔终 January 13, the Brazilian central bank president resigned, the currency rial announced the abolition of the original narrow range of exchange rate fluctuations against the dollar extended from 1.12-1.20 to 1.22-1.32. On the same day, the real was devalued by 9%. On January 15, the Central Bank of Brazil announced that Real was free floating. On January 18, Brazil formally adopted a floating exchange rate system. The financial volatility of South American powerhouse Brazil became the focus of attention in the world. Real of Brazil’s final