Statistical Coherence: Census Hub Hypercubes

and IPUMS Microdata

UNECE Expert Group on Population and Housing CensusesGeneva, 23-26 September 2014

Lara ClevelandUniversity of Minnesota, USA

clevelan@umn.edu

with Robert McCaa1, Matt Sobek1, Albert Esteve2, and Antonio Lopez2 1University of Minnesota, USA

2Autonomous University of Barcelona, Spain

79 countries -- 258 censuses -- 560 million person records

CED Barcelona: IECM

DWB: Jan 2015 Workshop for microdata researchers

INGRID: June 2015 Workshop for IPUMS partners after Conference of European Statisticians

Albert Esteve: aesteve@ced.uab.es

Complementary means of disseminationServe different constituencies

Census Hub

open access, counts, descriptive statistics

IPUMS Microdata

research or policy access, multivariate analysis

Census Hub and IPUMS Microdata

Census Hub

Census Hub: Summary Data

Census Hub: Cross-National

Relation to head

Marital status Education Occupation

Microdata

Microdata vs. Hub Data

Both: harmonize data internationally; pooled output; provide metadata

Microdata samples = flexibility (IPUMS/IECM)

•Download data for analysis

•Multivariate modelling

•Denominator

•Household-level samples: individual behavior in context

Household Microdata Example:Foreign-born persons in union with native-born (ca. 2000)

Coherence Hub and IPUMS/IECM sample data Between sources Across census years

Method: cohort analysis By birth year Proportion completed secondary education

Expected Results: Results should match for each year of birth

Between sources from the Hub and IPUMS/IECM Across censuses from different years Net of some effect of migration and mortality

Statistical CoherenceComparison of Hub and IPUMS Data

Secondary Education Completed: Austria

40% of people born in 1922 completed secondary

83% of people born in 1986 completed secondary

Secondary Education Completed: Austria

Secondary Education Completed: Austria

Secondary Education Completed: Austria

Secondary Education Completed: Austria

Secondary Education Completed: Austria

Secondary Education Completed: Ireland

Secondary Education Completed: Ireland

Secondary Education Completed: France

Secondary Education Completed: France

High degree of correspondence with official totals

Census microdata dissemination benefits• High quality documentation• Persistent data quality assessment• Large research and policy impact• Excellent user support

Results and ReflectionsIPUMS/IECM census microdata

Researchers and the IPUMS goals

•Preservation NSO: Current and future Res: Change over time – empirically •Harmonization NSO: Standards in National Context Res: Cross-country and cross-temporal

•Dissemination NSO: Specific format Res: Single format across all data sources

•Serves small specialty audience

Variables Included in Extracts

Top Institutional UsersCountry Institution Country Institution

1 USA University of Minnesota 16 Brazil Universidade Federal de Minas Gerais

2 USA Harvard University 17 Mexico El Colegio de México

3 USA University of Michigan Ann Arbor 18 USA Yale University

4 USA Columbia University 19 China University of Hong Kong

5 Spain Autonomous University Barcelona 20 USA University of Washington

6 USA Arizona State University 21 UK London School Economics

7 Singapore National University of Singapore 22 UK University of Stirling

8 IADB Inter American Development Bank 23 France Université de Bordeaux 4

9 WB World Bank Group 24 Austria University of Vienna

10 USA University of California Berkeley 25 Malaysia National University of Malaysia

11 USA Vanderbilt University 26 Austria Vienna Institute of Demography

12 USA University of Chicago 27 USA Pew Research Center

13 Australia University of Queensland Australia 28 Colombia Universidad del Valle

14 USA University of California Los Angeles 29 USA University of Delaware

15 USA Dartmouth College 30 USA Brown University

Thank you!

ipums.org

clevelan@umn.edu