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and the consistency between inter-Nordic migration figures

This presentation discusses the Nordic agreement on population registration and the consistency between inter-Nordic migration figures. It covers the history, basic principles, and features of the agreement, as well as the adaptation of register data to statistical needs. The results show a 3% deviation in annual migration flows between Nordic countries.

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and the consistency between inter-Nordic migration figures

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  1. The Nordic agreement on population registration andthe consistency between inter-Nordic migration figures Kåre Vassenden Statistics Norway Presentation for the Joint UNECE/Eurostat Work Session on Migration Statistics Geneva, 14-16 April 2010

  2. Pop. reg. syst- em B. The Nordic agreement on population registration NSI C. Adaption of the register data to statistical needs Developing principles and methods for studying the consistency between high quality migration statistics from a limited number of similar countries D. The quality of the statistics: consistency between statistics from different countries What this is about A. The national population registration systems

  3. Which are the Nordic countries? ”Norden” (in Scandinavian) is divided into … • Sweden • Denmark • Finland • Norway • Iceland • Greenland • Faroe Islands

  4. B. The Nordic agreement on population registration

  5. History 1954: The new Nordic Council proposed a study 1969: An arrangement with Inter-Nordic migration certificates was introduced 2003: Nordic politicians demanded faster handling of inter-Nordic migrations 2007: A quite new system was launched based on electronic flow of data between the Nordic population registration authorities

  6. Basic principles of the agreements • The Nordic countries constitute one population area • The purpose is to avoid double registration or no registration • A person is registered as resident in only one country at a time • The countries keep their own laws and rules. The concept of residence may differ • The legislation in the country of immigration is decisive. This country makes the decision

  7. Some abbreviations and terms used • SC = Sending country /population registration authority • RC = Receiving country /population registration authority • NN = a specific (possible) migrant • Registration of residence = immigration

  8. Features of the new system • Inter-Nordic migrants now face the same rules and routines as other international migrants • However, the inter-Nordic immigrants are asked to give their PIN and address (as in SC) • A dedicated electronic system is used for the communication between the relevant authorities

  9. How the system works • RC receives a request for residence from NN, who has just arrived from SC • RC may need more information about NN in order to decide if he qualifies for residence. RC sends a request to SC • RC accepts the request for residence. When RC records the immigration in its database a notice is automatically sent to SC, informing that NN from now on is registered as resident in RC

  10. How the system works (cont.) • The relevant office in SC will find NN in a list on the computer screen • SC follows the decision made by RC without any questioning, and registers NN as emigrated from SC • SC use the same date of event as RC • After this process, RC may ask SC for supplementary information on NN

  11. Notice about the Nordic system! • A collaboration between the population registration authorities. The NSIs are not involved • Includes more than sharing data. This is public administration across the borders • It presupposes … • a certain level of infrastructure • a concept of residence • a general population registration system serving all the society • similar ideologies and traditions of population registration • similar societies • trust between the involved authorities/countries • etc.

  12. C. In the NSIs: Adaption of register data to the statistical needs

  13. The situation for the Nordic NSIs • They are supplied with “pre-harmonised” data • This quality should not be reduced by the process of producing statistics. New incoherence should not be introduced into the data • However, transforming the data into statistics necessarily means choosing certain conditions for extraction and processing

  14. The NSIs may have different policies, procedures and conditions • Length of the waiting period before extraction of data • Choice of variable for date of event (actual or official) • Handling of annulments and corrections • Handling of events with a date of event before the reference year (“the lag”) May differ:

  15. The size of the lag The percentage of lag in Norwegian immigration and emigration statistics *) *) All migrations, not only the inter-Nordic ones

  16. D. The consistency between the inter-Nordic migration figures D1. General discussion

  17. Inspiration for the project: the classical “double entry matrix”

  18. Example of an annual flow

  19. D2. Results so far

  20. The annual flows *) sorted by percentage difference *) Annual flows with minimum 10 migrations. Sweden-Faroe Island is not included

  21. Comparing the annual flows

  22. Aggregating the differences • The 570 annual migration flows cover 737 600 migrations • The absolute differences sum up to 22 000 • which equals 3 per cent of the migrations • i.e. the deviation was 3 per cent in the period 1990-2008 • The weight of the countries is proportional to the number of migrations

  23. The total difference for all migration flows.1990-2008

  24. More about the increase from 2006 to 2007 • From 1,8 per cent to 4,0 (+2,2) • Increase for all countries. Lowest in Norway: 1,6 • If we take away Denmark the total increase is 1,7 • Without Denmark and Finland the total increase is 0,6

  25. Possible reasons for the setback in 2007 • New policy in Statistics Denmark: From 2007 lags are excluded from the population statistics • The Finnish residence concepts have been a challenge for the new system? • Maybe the new exchange system is not as good as the old one, or maybe it has teething troubles?

  26. Consequences of excluding the lag (1)

  27. Consequences of excluding the lag (2) • Swedish statistics have lost 5 500 emigrations since 1998, judged by the number of immigrations from Sweden to the other Nordic countries (from Sweden) • i.e. Swedish figures for emigration to the Nordic countries have been 4 per cent too low • Similarly for Danish statistics since 2007: 945 lost emigrations, figures 4 per cent too low

  28. General conclusions • Strangely enough, the new Nordic data exchange system may have had a slight negative effect on the statistical consistency. Too early to conclude • The NSIs should be aware of their impact on the consistency • Excluding the lag definitely reduces the consistency • Continued monitoring is necessary. The increasing difference from 2007 should be followed up

  29. The end

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