In a market economy as the Brazilian, who the government can count on two important instruments - that they interact and if they complement -, to guarantee the economic growth: the antitrust legislation and the politics of economic regulation. In this direction, this article - supported in called New Institutional Economy (Williamson, 1975, 1985, 1996; North, 1984, 1997; Olson, 1996; Stiglitz, 1990) -, the objective has to portray in general lines the politics and the system of free market defense in Brazil, as well as evaluating if the decisions of the Board of directors of CADE, from the opening of the Brazilian economy in the Nineties, are contributing for the institutional fortify of the system of free market defense in Brazil, with prominence for the examined acts of concentration after-1994. We conclude that, the system of free market defense in Brazil needs bigger rapidity in the appreciation of determined acts, and to perfect the mechanism of coordination of the agencies of the system, to consolidate itself institutional in Brazil.
free market defense; competition; competition market; concentration act; Brazil
