This article, based on Kaldor’s model of the stages of development, concludes that, despite having modernized thanks to the economic liberalization process, the evolution of Brazil’s industrial structure has increased the share of low-technology goods in the production matrix. The trend appreciation of the real in the initial phase of economic liberalization was positive for modernizing Brazil’s technology stock; but its continuation in recent years, when there has been ample international liquidity for emerging countries, threatens the development of the national manufacturing sector. This sector could suffer a technological setback, which, according to the principle of circular cumulative causation, diminishes its capacity to forge links with other sectors of activity, and accentuates the economy’s long-term external dependency.