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Big microdata for population research.

Steven Ruggles1

  • 1Minnesota Population Center, University of Minnesota, 225 19th Ave South, Minneapolis, MN, 55455, USA, ruggles@umn.edu.

Demography
|September 10, 2013
PubMed
Summary
This summary is machine-generated.

Demographic researchers now have access to over 2 billion individual-level population records from 100+ countries, enabling transformative studies on societal changes. This explosion in accessible microdata spans from 1703 to the present, with more data available via restricted enclaves.

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Area of Science:

  • Demography
  • Economic History
  • Sociology

Background:

  • Significant increase in the availability of individual-level population data.
  • Over 2 billion microdata records accessible globally by 2018.
  • Additional 2-4 billion records available through restricted-access data enclaves.

Purpose of the Study:

  • To highlight the unprecedented growth in accessible population microdata.
  • To underscore the potential for transformative research enabled by these data resources.
  • To discuss the implications for understanding demographic and economic change and societal spatial organization.

Main Methods:

  • Descriptive analysis of data availability trends.
  • Overview of data sources and accessibility levels (public vs. restricted).
  • Identification of the temporal and geographical scope of the available data.

Main Results:

  • By 2018, over 2 billion individual-level population records from 100+ countries are accessible.
  • Data ranges from 1703 to the present.
  • Substantial additional microdata is accessible via restricted enclaves.

Conclusions:

  • The explosion of individual-level data represents a new era for demographic and social science research.
  • These resources will facilitate transformative insights into historical and contemporary demographic, economic, and spatial patterns.
  • Researchers can now investigate societal changes with unprecedented granularity and scope.