摘要：AbstractPopulation migration has two components, domestic and international, those are often analyzed separately. This paper attempts to seek out what are the theoretical and empirical relationships between them, and lays the foundations of a unified based on the similarities of both migratory phenomena. A review of the contributions that discussed the existing dichotomy between the two types of migration and attempted to carry out an integrated analysis is complemented with a review of the most common research approaches for both types. An empirical analysis of net internal and international migration is carried out for several OECD countries, which validates this approach and assesses both the similarities, and the degree of divergence between them that requires a distinct approach.
