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The IECM project: I ntegrating the E uropean C ensus M icrodata IECM team*

The IECM project aims to inventory, preserve, integrate, and anonymize European census microdata, enabling comparative research. It disseminates restricted access extracts to approved researchers at no cost.

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The IECM project: I ntegrating the E uropean C ensus M icrodata IECM team*

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

  2. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS • 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 documentation3. 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. Disseminaterestricted access, custom extracts to approved researchers at no cost International Satistical Institute, 56th Conference, Lisbon 2007.

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

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

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

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

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

  8. PROJECT OVERVIEW | DOCUMENTATION | HARMONIZATION | MICRODATA STRENGTHS Experts and Producers Contributions Workshop "Integrating European Census Microdata - II"with a satellite meeting of non-European countries 7-10 June 2006 Friday, June 9 - INED, 133 bd Davout09:30 - 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. International Satistical Institute, 56th Conference, Lisbon 2007.

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

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

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

  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 “Census microdata are an invaluable resource – sample density and geographic coverage - for social science research butinternational comparisonsbased 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 International Satistical Institute, 56th Conference, Lisbon 2007.

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

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

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

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