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Integrated Public
Use Microdata Series International
census microdata for social and economic
research
Overview
| Linked Documents |
Project Abstract
Planned Microdata Sample Releases
Partners, Projects
Products, Papers, Milestones
Letter of Understanding between National Statistical Office and the University of Minnesota
Sample design
Statistical Confidentiality and anonymization
User licensing agreement
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Goals
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Inventory surviving computerized census microdata for all countries from 1960s to 2000.
Preserve complete documentation on all surviving computerized census microdata--codebooks, sampling designs, and record structures--from the earliest available samples through the 2000 round of censuses.
Identify and preserve endangered census microdata and documentation. For example, the entire microdata archive of the U.N. Centro Latinoamericano de Demografía, some 8,000 computer tapes, will be salvaged and transferred to CDROM or other stable media.
Integrate census microdata of some dozen countries from the earliest date available (usually the 1960s) through 2000. By integration, we mean both data and documentation codes of every variable will be standardized and census concepts harmonized to the greatest extent possible, while preserving the original coding schemes.
Disseminate the resulting internationally integrated census microdata and documentation over the Internet (or CDROM or other media), free of charge to the user.
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| General Plan | Year 1: Preservation.
Inventory census microdata and documentation for each country.
Obtain permission of authorities to proceed (resolve issues of privacy and confidentiality).
Collect microdata documentation, both print and machine-readable, where available.
Year 2. Design Integration
Develop anonymized, documented, machine readable microdata for each census for which they are available. Salvage old data tapes to the extent possible.
Design national integration plans using the 2000 round of censuses as the standard. Every variable and every code must be accounted for.
Year 3. Test Integration
Minnesota team programs and the international team tests integration design.
Year 4. Dissemination
Release of customized microdata sets to bona-fide researchers who agree to terms of non-disclosure agreement.
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