Fertility, social mobility and urban migration in Brazil

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Abstract
In the course of a sample survey of the adult population of eight cities in southcentral Brazil conducted in 1959 and early 1960, material was obtained respecting total family size after ten or more years of marriage. This was analysed in order to determine what variations in mean family size could be observed in relation to class status and social mobility. The results generally corroborate those of J. Berent for England and Wales–that is, that fertility is inversely related to class status, and that for a given class, the lower the class of origin, the higher the fertility. There was no confirmation, however, of J. Goldberg's findings in Detroit that the inverse relationship between class and fertility is due to the presence in urban populations of the rural-born, and suggestions are put forward which may explain this result in Brazil. A tentative estimate suggests that the net effect of social mobility had been to reduce the sample's total births by something of the order of 3 per cent.

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