1 / 32

1. Introductions, organization and program

Welcome to the 7 th IPUMS-International workshop Accomplishments, plans and challenges https://international.ipums.org/international * * * Robert McCaa, Professor of population history University of Minnesota rmccaa@umn.edu for additional details, please see : www.hist.umn.edu/~rmccaa/ipumsla.

karif
Download Presentation

1. Introductions, organization and program

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Welcome to the 7th IPUMS-International workshopAccomplishments, plans and challenges https://international.ipums.org/international* * *Robert McCaa, Professor of population historyUniversity of Minnesotarmccaa@umn.edufor additional details, please see:www.hist.umn.edu/~rmccaa/ipumsla

  2. 1. Introductions, organization and program • Introductions • Doña Carmen Miró, director and founder of CELADEthanks to your vision: the world’s largest microdata archive • Don Evelio Fabbroni, technical secretary of IASI • Don Dimas Quiel, Director General of DEC-Panamá, and your staff • Delegates of the National Statistical Institutes of Latin America • Minnesota Population Center: 9 members of the team • Organización • Dinner per-diem for Tuesday • All activities are in the Hotel Crowne Plaza • Program (please see the workshop folder): two intensive days • Invited speakers: INEs, CELADE, CED (Barcelona) • MPC: • Listen and learn • Demonstrate what has been accomplisted: recovery, confidentiality, integration, dissemination • Show the website and how to make good use of it • Discuss plans and innovations for the 2nd five-year plan of IPUMS-AL: 2009-2013

  3. Outline of the presentation no. of slides 1. Introduction 5 2. Accomplishments—celebrate a success far beyond… • Censuses and documentation recovered 9 • Censuses integrated (see map and inventory) 3 • Confidenciality and security 5 • Methods and procedures 3 3. Plan and challenges 2 • Censuses to integrate, 2010 round, tabulator (REDATAM?), GIS, laboratories of high security

  4. IPUMS – Latin America: past, present and future • Past: Thank you! • All the statistical institutes of Latin American are cooperating with the IPUMS project. • Present: Samples of 9 countries (43 censuses) of the American continents integrated in the IPUMS system https://international.ipums.org/international • 2002-8: Argentina, Brazil, Chile, Colombia, Costa Rica, Ecuador, Mexico, Panamá, y Venezuela • Future: 2009-13: • The remaining Latin American countries • Censuses of the 2010 round, entrusted before 2013 • Tabulator, GIS, Laboratories of high security

  5. Some members of the IPUMS team (2008) Steven Ruggles, inventor of IPUMS, Professor of History, and Director of the Minnesota Population Center (Not present: computer gurus, some researchers, and others who were too busy to make time for taking a photo!)

  6. The objectives of IPUMS Preserve census microdata and documentation for all the countries in the world Integrate microdata and metadata Disseminate--without cost--extracts of samples with the corresponding documentation to researchers

  7. IPUMS Milestones • 1995: IPUMS-USA first release of integrated microdata IPUMS-USA continues: 1850-2000 + ACS samples • 1999: IPUMS-International funded • 2002 - 1st International release: 7 countries, including Colombia and Mexico • 2006 release: 20 countries, 63 censuses, • 2008 release: 35 countries, 111 censuses • ~263 million person records • Two thousand users • 2013 release: ~60 countries, ~200 censuses Note: microdata are already entrusted to MPC

  8. Workshop goals • Evalute the integrations to date (9 countries, 43 censuses) • Discuss plans to complete the remaining integrations (12 countries, 43 censuses) • Consider the incoporation of electronic boundary files corresponding to the microdata • Study the obstacles and challenges in the harmonization of census samples for the 2010 census round. • Discuss methods and procedures of the IPUMS project to improve them • Respond to doubts, questions, or concerns regarding any aspect of the project

  9. 6 presentations on IPUMS Introduction: past, present, and future – Bob McCaa Metadata: The IPUMS dynamic system – Toni López How to make an extract (to obtain microdata) – Miguel Ricaurte How Integration is accomplished – Matt Sobek Complementing microdata with GIS: the example of NHGIS – Petra Noble The REDATAM tabulator of integrated microdata implemented by IECM (CED, Barcelona) – Toni López

  10. 2a. The Americas: The global vanguard in preserving microdata • 1959: CELADE began the grand project OMUECE (Operation of Census Samples). • Only CELADE, of all the UN demographic centers, • Began a project to archive microdata • Stimulated an archival program for both data and documentation • Already, in 1977, CELADE was entrusted with 61 sets of microdata encompassing 20 countries. • Principal goal: special and comparative tabulations • Comparative demographic research of many countries • Standardization of basic codes to attain a minimal level of comparability.

  11. Census Microdata: 1950sfew countries archived microdata (a country in green indicates microdata exist for the decade)see: www.hist.umn.edu/~rmccaa/IUMSI/country6.htm Mollweide projection

  12. Census Microdata: 1960sThe Americas: in the vanguard for encouraging the preservation of microdata Mollweide projection

  13. Census Microdata: 1970salready in the Americas, the preservation of microdata is almost universal and is becoming widespread in Europe, Africa and Asia Mollweide projection

  14. Census Microdata: 1980sThe preservation of microdata became generalized Perú: Can the tapes for the census of 1981 be recovered? Mollweide projection

  15. Census Microdata: 1990smany countries preserved microdata(or are disposed to recover them) Rep. Dom.: ¿can the data for the census of 1993 be recovered? Mollweide projection

  16. Inventory of census microdata archived by region and decade (% of censuses conducted) • Note: cases confirmed by the corresponding official statistical institute. Some datasets remain to be certified. Some countries have not responded to the invitation to inventory their stocks of data. Source: http://www.hist.umn.edu/~rmccaa/IPUMS/country6.htm

  17. The CELADE archives~3000 microdata tapes preserved with the corresponding documentation

  18. For the entire region, manuals are lacking for only 10 censuses: • 1. El Salvador: 1992 2007 • Guatemala: 1973 1994 2002 • Honduras: 1974 • Nicaragua: 1995 2005 • Rep. Dom.: 2002 • Perú: 2007 Los Archivos de CELADE~3000 cintas de microdatos preservadas con su documentación correspondiente

  19. 2b. Integration: IPUMS-Latin America in global context dark green = already integrated(35 countries, 111 censuses, 263 millon person records)green = to be integrated (39 countries, 103 censuses, 150 mill.) Mollweide projection

  20. Census documentation assembled for the microdata of Colombia Standard: UNSD Principals and recommendations... Photos from the first integration project: Colombian microdata, February-March, 2000:4 experts from DANE +7 academics (3 universities)

  21. IPUMS-Latin America • Samples currently available in IPUMS • 9 Latin American countries, 43 censuses: average = 4.8 censuses per country • 26 countries for other regions, 68 censuses: average = 2.6 censuses per country • In 2013, is all goes well: • 21 Latin American countries, 86 censuses • 60 countries for other regions, 120 censuses.

  22. 2c. Statistical Confidentiality and security • Cited by UN-ECE as “good practice” • On-site inspection: the Dennis Trewin Report

  23. Why was IPUMS cited as “good practice” by the UN-ECE (2007, Annex 23, pp. 98-103)?http://www.unece.org/stats/documents/tfcm.htm

  24. Good practices (see annex 23): • High level of confidence and transparency between the researchers (users) and the national statistical institutes • The conditiions of use are well defined • Sanctions for mis-use are clearly spelled out • Good use is assured by both juridical and administration mechanisms to prevent violations • Sanctions are imposed no only against those who misuse the data but also against their institutions. • The data are anonymized by highly efficient technical means

  25. The standard agreement between National Statistical Institutes and the University of Minnesota

  26. Statistical confidentiality and security:see the Trewin Report • “The best practice for an international repository of microdata” • “The security of IPUMS is first class…the standard of the best national statistical offices” • “in full compliance with the principles and recommendations of the ECE”

  27. 2d. IPUMS methods and procedures • Dissemination by internet • Comprehensive documentation, including • Data dictionaries and codebooks • Complete original source documentation in the official language: questionnaires, manuals, etc. • All translated to English and converted into metadatabase for each census • Integration ≠ standardization • Composite codes (11, 12, 21, 22…) ≠ serial codes (1, 2, 3, …) (see next slide)

  28. IPUMS—Integration method: composite codes (multiple digits)retains not only significant distinctions but also integrates comparable concepts

  29. In addition… • Microdata: new high precision samples not only for contemporary censuses but also for historical ones (before the 90s) • Systematic metadata for all variables • Universes • Definitions • Comparability • Dynamic System—facilitates comparing the wording of questionnaires and instructions for any combination of countries and censuses

  30. 3. IPUMS-Latin America II, 2009-13: objectives Objectives • Conclude the integration of the censuses of the remaining countries in the region • Incorporate samples for the 2010 round • Add digital boundary files at the second administrative level • Facilitate pre-analysis with an on-line tabulator • Construct a laboratory of high security Invitation: • Confirm participation in IPUMS-AL II • Facilitate copies of digital boundary files • In time, make available census microdata and documentation for the 2010 round • Discuss participation in the high security laboratory

  31. Appreciation, reflections and invitation • Appreciation: • To the founders (and current members) of CELADE for having had the vision and ability to assemble and preserve microdata • To the official statistical institutes for, first, cooperating with CELADE, and second, for participating in the IPUMS project • Reflections • Latin America: a model for statistical cooperation • IPUMS: already the world’s largest microdatabase • Invitation: • Participate in IPUMS-AL II • Entrust microdata and documentation • Consider: Tabulator, GIS, laboratory of high security

  32. Thank you!!rmccaa@umn.edu

More Related