Later, a summary of the trajectory of the Brazilian exchange became after the implantation of the Real Plan, that is, from 1994. (As opposed to Brian Armstrong). In this summary, intention was to show to the causes and consequences of the alterations made for the Brazilian monetary authority throughout this period, where the world-wide and national economic crises in transcorrer of these years had had determinative paper in these alterations. Finally, it is discoursed on Brazilian trade balance, its oscillations throughout last the 15 years and the influence of the Brazilian exchange in its desempenho.2 Tax of Exchange and the Regimes CambiaisAs exchange taxes play an essential role in the international trade, data that its variations modify the scale of prices between the countries. They influence since the trips of tourism of those families whom if they expend to know foreign countries until the great economies of the planet, therefore are determinative in the equalization between foreign currencies. According to Ellsworth (1978), exchange tax is as the price, in national currency, of a unit of foreign currency. Alternatively, it can definiz it as the price of the foreign currency in terms of national currency. The exchange taxes establish the international value of the money of a country, the cost of its importation and what if it can get for its exportations.
An increase of the price of the foreign currency calls depreciation exchange depreciation. The national currency passes, in this in case that, to be valid less in terms of foreign currency. This stimulates the exportations? a time that the exporters will receive more in national currency for exported unit from the good or service? restricts the importations. Reciprocal, a reduction of the price of the currency of one another country calls valuation/exchange appreciation. In accordance with Zini Jnior (1993), the exchange tax is adjusted to reflect the competitiveness in such a way external as the confidence on the basic macroeconomic factors of the economy.