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
Economic history of Brazil the early 1970s, the performance of the export sector was undermined by an overvalued currency. With the trade balance under pressure, the oil shock led to a sharply higher import bill. Brazil opted to continue a high-growth policy. Furthermore, it adopted renewed strategies of import substitution industrialization and of economic diversification. In the mid-1970s, the regime began implementing a development plan aimed at increasing self-sufficiency in many sectors and creating new comparative advantages. Its main components were to promote import substitution of basic industrial inputs (steel, aluminium, fertilizers, petrochemicals), to make large investments in the expansion of the economic infrastructure,