Examines census data on the fertility of U.S. immigrants to study trends in fertility after migration. Results show that immigrant fertility may rise after arrival in the new country, perhaps because immigrants are making up for births or marriages postponed because of the move, but that, with assimilation, fertility declines. (AF)

This study relates the residential segregation or ghettoization of the Puerto Rican population in New York City to the employment opportunities, mobility and assimilation of the minority. Both ecological and individual level approaches are utilized to investigate three basic questions: (1) What are the mechanisms of the influence of ghetto…

This study attempts to measure the degree of assimilation exhibited by various immigrant groups, as indicated by their residential patterns. Ecological models of assimilation hold that immigrants are highly segregated from the majority population upon arrival, but that segregation declines with time in a process of residential assimilation. The…

Wilmington, Delaware, a medium-sized industrial center in the eastern United States, was the site for this study of migration. The report presents some of the major ideas, hypotheses, and findings of a study on recruitment, movement, and assimilation of migrants into Wilmington. Data for the study were obtained from the 1960 census figures and…