The production and the consumption of sugar are very old. The practices of the developed countries destined to support and to protect yours markets of this product are also old, what was enlarged after the crisis of 1929, starting to exist as much the world free market as the preferential markets. This paper analyzes the relationships of this with the evolution of the sugar's agroindustry of Brazil, showing that the Brazilian exports just reached a new level after the entrance of our sugar in the North American preferential market, since until then our production of sugar was destined to the internal consumption and the market of alcohol fuel it was associated.
Brazil; markets; sugar; alcohol; agreements
