Resumen
The dynamics of intra-industry specialization was shown by means of the regional indices of marginal specialization, indices which break down the changes which appear in the specialization processes into two components: the marginal intra-industry specialization and the inter-industry specialization. The regional assessment of the marginal intra-industry specialization was done on the level of the sections in the Combined Register, and the results of the analyses confirm the fact that the dynamics of the specialization processes in the Romanian regions was greatly influenced by the increase of intra-industry specialization, increase manifested especially in the specialization process pertaining to the manufacturing of products which use intensively the human capital and high technology.