"This article uses a unique set of pooled cross-sectional and time series data to examine the annual rate of U.S. immigration during 1972-1991 from 60 source countries. One distinguishing feature of the article is that it breaks out and cross-classifies various classes of immigrants--numerically limited versus numerically exempt and new immigrant versus adjustment of status. A second distinguishing feature is that it utilizes a unique vector of variables relating to the presence and characteristics of various social programs in source countries. The models developed here emphasize the importance of both differential economic advantage and the ease with which a prospective migrant can transfer skills to the U.S. labor market. Hausman-Taylor instrumental variable estimates of the coefficients indicate that in addition to other factors, social programs in source countries are significant determinants of immigration to the USA." Data are from the Immigration and Naturalization Service's Public Use Files.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/01621459.1999.10473819 | DOI Listing |
Forensic Sci Int Genet
December 2024
DNA Diagnostic Laboratory, Institute of Biology Roberto Alcantara Gomes, State University of Rio de, Rio de Janeiro 20550-900, Brazil.
Latin American countries are distinguished by their highly admixed populations, characterized by a significant preservation of Native American matrilineal ancestry. This contrasts with the paternal lineages, which exhibit different patterns due to pronounced sex-biased mating practices during the colonial period. Uniparental genetic markers have been instrumental in population genetics, facilitating the reconstruction of human settlement histories and serving forensic identification purposes.
View Article and Find Full Text PDFAppl Health Econ Health Policy
December 2024
Centre for Health Economics Research and Evaluation, University of Technology Sydney, Level 5, Building 20, 100 Broadway, Chippendale, Sydney, NSW, 2008, Australia.
Objective: This article reviews the assessment pathways that have been implemented worldwide to facilitate access to drugs for patients with rare diseases.
Methods: The Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines were used to conduct a systematic literature review. The Ovid (Embase/MEDLINE), Cochrane, Web of Science, Econlit, National Institute of Health Research, Centre for Reviews and Dissemination, and International Network of Agencies for Health Technology Assessment databases were searched.
Sci Rep
December 2024
School of Economics and Management, China University of Geosciences, Beijing, 100083, People's Republic of China.
Since agriculture is a major source of greenhouse gas emissions, accurately calculating these emissions is essential for simultaneously addressing climate change and food security challenges. This paper explores the critical role of trade in transferring agricultural greenhouse gas (AGHG) emissions throughout global agricultural supply chains. We develop a detailed AGHG emission inventory with comprehensive coverage across a wide range of countries and emission sources at first.
View Article and Find Full Text PDFSci Rep
December 2024
School of Marxism, Hebei Sport University, Shijiazhuang, 050041, Hebei, P. R. China.
The G20 countries are responsible for around 75% of the world's greenhouse gas (GHG) emissions, including the use of natural resources. In this regard, the role of globalization in achieving environmental sustainability is a relatively new topic of concern. As a result, the present study considers how globalization and natural resources affect GHG emissions, as well as the roles that renewable energy consumption and urbanization play in the G20 countries between 1990 and 2020.
View Article and Find Full Text PDFSci Data
December 2024
Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
Persicaria tinctoria (2n = 40) is an important traditional medicinal plant and natural dye source within the genus Persicaria. P. tinctoria has been utilized for its antibacterial, antiviral, anti-inflammatory, and tumor treatment properties.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!