ABSTRACT Classical developmentalism was heterodox economics that showed countries require a moderate intervention of the state in the economy to industrialize and catch up. Growth depends on investments and on a satisfying expected rate of profit, which import tariffs legitimized by the infant industry argument assure. Latin American countries adopted this industrial policy from the 1950s and experienced high growth rates. But the infant argument loses validity with time. In the 1980s, under the pressure of the Global North, Latin American countries adopted the neoliberal reforms, and are quasi-stagnant since then. New developmentalism emerged in the 2000s, made the critique of conventional economics, proposed a new growth strategy focused on a competitive exchange rate, and legitimized the use of import tariffs with the Dutch disease argument.