Migraciones e interacción regional en Colombia

This arride propases the study of census in­ formation on poplutation migration as an inidactor of sociospatail interaction in Colombia. Since sociospatial studies in Colom­bia rarely use flow and interaction evidence, the proposed approach is innovative. "Life­ long migration" data from the 1973 and 1993 census are examined in order to discern tendencies during this period. The first part of the article explores migrational be­havior among the four large, sociocultural regions which have been the longterm ba­ses of Colombian sociospatial structure (adding to them a fifth region, resulting from the expansion of the socioeconomic frontier), and tries to define recent pattems of territorial unification. The second part analyzes the interaction between departments and propases á model for defining sociospatial hierachies and interaction in the two periods studied.