Concorrência e diferenciais intersetoriais de rentabilidade: uma análise da indústria brasileira - 1973/85

Resumo

The post-Keynesian and post-Marxist economics argue that the oligopolistic industries
are capable of obtaining, on the average, higher profit rates than the competitive
sectors because they possess market power and are relatively protected from "new competition"
by entry barriers. On the other hand, Marx's theory predicts that competition
tends to equalize profit rates between industries, irrespective of their market structure.
The aim of this paper is to test, by using an autoregressive model, whether or not there
exist long-run profit rate differentials between the oligopolistic and competitive sectors
of the Brazilian manufacturing industry for the 1973-85 period. The results obtained do
not support the post-Keynesian hypothesis that modern capitalism is not characterized
by the tendency towards the equalization of industry rates of profit.