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  Principles

Large machine-readable census microdata samples exist for many countries, but access to these data has been limited and the documentation is often inadequate. Even where such microdata are available for scholarly research, comparisons across countries or time periods are difficult because of inconsistencies in both data and documentation. IPUMS-International addresses these issues by converting census microdata for multiple countries into a consistent format, supplying comprehensive documentation, and making the data and documentation available through a web-based data dissemination system.

Confidentiality. IPUMS-International respects confidentiality standards of collaborating nations, protecting the privacy of individuals, families, and households.

Preservation. IPUMS-International is inventorying and preserving census microdata and documentation, particularly those identified as at-risk of damage or loss.

Harmonization. IPUMS-International is harmonizing data and documentation to ease comparisons across time and across nations, without loss of information.