Currency War of 2009–11 dollar, with Goldman Sachs saying the real is the most over valued currency in the world. In October 2010, Brazil began increasing her capital controls, doubling a tax on foreign purchases of fixed-income assets to 4 percent so as to curb the real's appreciation to a two-year. On 18 October, Brazil sought to curb the real's gains by raising taxed capital inflow on fixed-income assets by 2% to 6% and taxed inflows for margin deposits on futures to 6% from 0.38%. Chile said it would implement capital controls to curb gains in the Chilean peso, which had strengthened the most
Currency war Debate, and also in an article for the "Financial Times", Brazilian president Dilma Rousseff called for the currency war to be ended by increased use of floating currencies and greater cooperation and solidarity among major economies, with exchange rate policies set for the good of all rather than having individual nations striving to gain an advantage for themselves. In March 2012, Rousseff said Brazil was still experiencing undesirable upwards pressure on its currency, with its Finance Minister Guido Mantega saying his country will no longer "play the fool" and allow others to get away with competitive devaluation, announcing new measures