Materials available in the repository may be protected by copyrights owned by private individuals or organizations, and may be subject to restrictions on use.
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Migration data for the United States are based on year-to-year address changes reported on individual income tax returns filed with the IRS. Data for some years are free, other years for sale.
Since the development of the current official poverty measure in the 1960's by Mollie Orshansky there have been a series of studies and reviews of the conceptual and technical elements that make up the measure. These studies produced a large number of technical working papers and reports, including a National Academy of Sciences (NAS) 1995 report Measuring Poverty, that address the important measurement issues that are still being discussed by researchers and policy makers today.
replacement for old Liber8 website. produced by the library. , the focus has expanded beyond offers the data behind the economics, including a data "starter set" from our popular FRED website. The Page One Economics Newsletter. aims to serve educators, students, and adult learners as a resource for understanding the economy and economic issues.
The National Oceanographic Data Center (NODC) is an "organization that provides scientific and public stewardship for national and international marine environmental and ecosystem data and information." Their website contains helpful data related to physical, biological and chemical measurements derived from in situ oceanographic observations, satellite remote sensing of the oceans, and ocean model simulations. On the homepage, visitors can use the Access Data area to look for detailed profiles of the world's oceans, along with information on finding archived data sets. One recent feature added to the site is the "Gulf of Mexico Data Atlas." Visitors can use this atlas to toggle various data sets, such as soundings, place names, and so on for a detailed and nuanced understanding of this body of water. Moving on, the Publications area contains links to the NODC's Ocean Climate Laboratory, posters, and the NOAA Photo Library.