"This article looks at the relationships among immigration, fertility and mortality to explain the changes that have occurred and will continue to occur in the population of the United States. Emphasis centers on the recent past, the present and the first half of the 21st century. It is pointed out that the nation will undergo major changes in its age and ethnic composition in the near future because of the aging of the baby boom generation and the continued high level of immigration from Latin America and Asia.... In the paper's conclusion, alternative policy options are considered." (SUMMARY IN ENG AND SPA)
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