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
Absolute currency strength strength. Shorter or longer timeframes are used for alternately shorter or longer outlooks. Extreme high and low percentage values occur less frequently but indicate stronger momentum of currency. ACS is in most cases used as support indicator for Relative currency strength indicator. But it can be used by itself for currency trading. One can use Absolute currency strength for pattern trading as well. Combination of RCS and ACS indicators gives entry and exit signals for currency trading. Indicator basic idea is "buy strong currency and sell weak currency". If is X/Y currency pair in uptrend, it shows if it is