LA CONCURRENCE AU CENTRE DE L’EVOLUTION DE LA THEORIE NEOCLASSIQUE DE LA CROISSANCE ECONOMIQUE
COMPETITION IN THE CENTER OF THE EVOLUTION OF NEOCLASSICAL THEORY ECONOMIC GROWTH

Summary/Abstract: The objective of this article is to show that the neo-classical theory of economic growth benefited greatly macro-economic researches done during the 70’s of the 20th century within the framework of industrial economy. In fact, the main results of these researches prove the imperfect aspect of competition (constant factorial returns, increasing returns on scale, the differentiation of goods through technological innovation, monopolistic competition and the presence of externalities in some activities). The standard neo-classical theory illustrated by the two versions of Solow model (1956) and (1957), considering perfect competition, was unable to explain some elements of economic growth. The models of endogenous growth that have been developed since 1986, by exploiting these results and adopting imperfect competition, gained a lot of scientific credit to explain economic growth

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