Interregional differences in fertility in Brazil, 1950-1970.

Trends and interregional differences in the birth rate in Brazil between 1950 and 1970 are examined. Estimates are based on data from the 1950 and 1970 censuses. Regional differences in birth measures (crude and general rates) were found to widen between 1950 and 1970 despite a decline in fertility at the national level and a narrowing of regional differences in important socioeconomicvariables like income and urbanization, The substantial interregional migration flows which occurred in Brazil between 1950 and 1970 are examined for their possible impact on differentials. The effects are mixed, but the conclusion is that migration contributed to widening differences.