1. The IECM project: Integrating the European Census Microdata IECM team* *A. Cabré, A. Esteve, J.Garcia, T. López, M. Valls www.iecm-project.org PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Centre d’Estudis Demogràfics

2. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. IECM forms part of IPUMS international, a global collaboratory of National Statistical Offices and Universities to: 1. Inventory the world’s census microdata 2. Preserve endangered microdata and documentation 3. Integrate census microdata a. use standards of UNSD, EuroSTAT, ISCO, ISCED, etc. b. facilitate comparative research in time and space 4. Anonymize census microdata to preserve statistical confidentiality, using highest standards 5. Disseminate restricted access, custom extracts to approved researchers at no cost

3. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Disseminating: Belarus, France, Greece, Hungary, Portugal, Romania, Spain, Harmonizing: Austria, Czech Republic, Germany, Ireland, Italy, Netherlands, Slovenia,Turkey, United Kingdom Negotiating: Belgium, Bulgaria, Norway, Poland, Russia, Switzerland Contacted: Finland, Iceland, Lithuania, Moldova, Slovak Republic, Ukraine

4. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. 7 Countries, 22 censuses 31,200,731 Personal records and 10,267,616 Household records

5. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Source Documentation

6. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Integrated Documentation (sample designs)

7. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Integrated Documentation (variable description)

8. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Experts and Producers Contributions Friday, June 9 - INED, 133 bd Davout 09:30 - 10:30h Economic variables. Deborah Levison, presiding. Teresa Munzi (LIS, Luxembourg): Comments. 10:30 - 11:30h Education variables. Deborah Levison, presiding. Jürgen Hoffmeyer-Zlotnik (ZUMA, Manheim): Comments. 12:00 - 13:00h Family and household variables. Deborah Levison, presiding. Nico Keilman (University of Oslo): Comments. 14:00 - 15:00h Country reports: microdata in planning stage. Sabine Springer, presiding. Gustavo de Santis: Italy. Marcel Heiniger: Switzerland. Meryem Demirci: Turkey. 15:00 - 15:45h The new French "rotating" census. Sabine Springer, presiding. Guy Desplanques (INSEE): Presentation. Workshop "Integrating European Census Microdata - II" with a satellite meeting of non-European countries 7-10 June 2006

9. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Harmonization I Opportunity: A vast quantity of census microdata covering Europe in the period since 1960s survives in machine-readable form Challenge: Variety of data formats. Census datasets are not clean Answer: Reformat each sample into a simple consistent hierarchical format & DOCUMENTATION

10. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Harmonization II Opportunity: Censuses share characteristics: similar topics (geographic, demographic, economic, education, household, migration characteristics of persons) Challenge: Census employ different definitions, concepts (de jure vs de facto, households). Major reconciliation of these differences is a central effort for the project Answer: DOCUMENTATION

11. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. Harmonization III Opportunity: For each variable, a similar set of basic codes exist. Common rationality (e.g., education: primary, secondary, tertiary) Challenge: Censuses employ specific classifications Answer: International Standards (ISCO, ISCED, ISIC), Composite coding schemes & DOCUMENTATION

12. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007.

13. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007.

14. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007.

15. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. “Census microdata are an invaluable resource – sample density and geographic coverage - for social science research but international comparisons based on these data are rarely attempted, partly because, for much of the world, are either unavailable or restricted, and are therefore seldom used.” --Robert McCaa and Steven Ruggles, 2002

16. % of oldest-old (85 + ) Female Eu25 average = 2,45Eu25 average = 0,98 IECM / IPUMS-Europe forthcoming countries PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. % of oldest-old (85 +) Male

17. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS IECM / IPUMS-Europe forthcoming countries Confidence Interval below the EU-25 average Confidence Interval includes the EU-25 average Confidence Interval over the EU-25 average EU-25 average = 2,45 Confidence Interval below the EU-25 average Confidence Interval includes the EU-25 average Confidence Interval over the EU-25 average EU-25 average = 0,98 Is the % of oldest-old higher or lower than the EU average? Females EU average = 2.45Males. EU average = 0.98

18. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS International Satistical Institute, 56th Conference, Lisbon 2007. For more information, please visit: www.iecm-project.org or www.ipums.org and register now!!! Contact: aesteve@ced.uab.es THANKS!!!