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 of 2009–11 reputation for avoiding government intervention in favour of free market policies. Brazil's finance minister Guido Mantega who had raised the alarm about a currency war back in September, warned that matters were beginning to escalate into a trade war. He expressed concerns about the economic policies of both China and the US. By February, the US had stepped up diplomatic efforts to persuade emerging economies such as Brazil and India that China's intervention was the root cause of the currency war. However the US once again refrained from labelling China a currency manipulator. A Treasury report said that allowing for