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The Implications of Native-Born Fertility and Other Socio-Demographic Changes for Less-Skilled U.S. this idea based on analyses of U.S. Census and American Community Survey data for decennial census years starting in 1970 and running through 2010. The results show a net decline of more than 7 million persons in the U.S.-born less-skilled working-age population since 1990, and a looming decline of尾随 发表于 2025-3-24 08:59:33
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Book 2018 low and lowest-low (where the birthrate is well below average) fertility, high and increasing life expectancies in the United States, the implications of native-born fertility and other socio-demographic changes for less-skilled U.S. immigration, ageing and age dependency in post-industrial societiNeuropeptides 发表于 2025-3-24 19:16:09
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Richard G. Rogers,Elizabeth M. Lawrence,Robert A. Hummerimilar to CO2. It also discusses relations to global change and future societal and scientific challenges related to land-use/cover changes..978-94-007-3695-5978-94-007-1527-1Series ISSN 1383-8601 Series E-ISSN 2215-162X