Title not available in English.

Abstract

This paper presents different patterns of migration rates according to the reasons to move and according to the family type envolved in the movement. These rates were computed from the information collected in the survey Pesquisa Regional por Amostra Domiciliar, runned in 1993 at São Paulo State. The paper shows that each reason to move or family composition of migrants take to a different pattern os migration rates, depending on the stage of life cicle the migrant or family is. Firstly, it discusses the classical paper of Rogers & Castro on migration schedules. Then, it presents the empirical migration rates – and modeled rates – according to the reason to move and the family type of migrants. The text also brings some applications of these modeled migration rates on statistical adjustment of other empirical rates, on the interpretation of net migration patterns and on the simulation of population projections. Practises using these models seem to show their external validity. This may happen due to the simplicity of the models and the meaning of their parameters, a not so often characteristic of other demographic empirical models.