Mobilidade populacional a partir dos dados do Cadastro Único

potencialidade e tempestividade para estudos demográficos

Abstract

One challenge for studies on population movements is the lack of timely data that aggregates population representation. The demographic census, although a reference, has a long periodicity, allowing historical analyses to the detriment of studies that result in inferences for public policies more quickly. As an alternative, the use of administrative databases has emerged to minimize these challenges, as has survey research, despite its cost. The objective of this article is to present the Cadastro Único do Governo Federal as a source for studies on population movements, highlighting its timeliness, the diversity of personal, family, and household information, and the longitudinal dimension that allows for the observation of population changes. Another potential of the database is its geographic scope, a requirement for studies on immigration, internal migration, and intra-urban movements. A typology of population movements based on the CadÚnico and the methodology developed for data processing are presented. Applied to the population of Minas Gerais between 2012 and 2022, the preliminary data show the migration of the poor population and intra-urban movements, with evidence of changes in the trend of urban-rural population movements in some periods during this period, inversely to the historical trend. This approach offers new perspectives for demographic analysis and public policy.