1 1 Administrative sources and quality of statistics Øystein Olsen Director General, Statistics...
Transcript of 1 1 Administrative sources and quality of statistics Øystein Olsen Director General, Statistics...
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Administrative sources and quality Administrative sources and quality of statisticsof statistics
Øystein OlsenDirector General, Statistics Norway
Round table on the use of administrative data Chisinau, Moldova, May 28th 2010
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Main points to be addressed
• The basis for using administrative sources in statistics production
• A register based strategy – some experiences from Statistics Norway
– The management of statistical populations– The Norwegian Population Census 2011
• Conclusions
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Statistics Norway in a nutshell:
• Independence anchored in The Statistics Act (1989)
• 1000 employees– Responsible for 85 percent of all official statistics in Norway
• A Research Department within the institution– Serving ministries with macroeconomic and micro simulation
models
• Statistics based on administrative registers and surveys
• About 300 statistics produced and 1000 (news) releases on www.ssb.no annually
• International cooperation– The EU/EFTA statistical system– International consulting
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The use of administrative data (1)
Preconditions:• Legal base
– Access to administrative data – Data protection (“one way traffic”)
• Public approval
• Common identifiers
• Comprehensive and reliable register systems
• Co-operation among authorities– Formal (bilateral) agreements– Feedback to register owners
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• The use of administrative data is cost effective
• The exploitation of administrative data is of utmost importance in order to reduce the burden
The NSI should take an active role!
• There are limitations to the use of administrative data– Inflexibility regarding choice of categories– Time lags and insufficient updating
One cannot avoid direct data collection!
The use of administrative data (2)
Lessons learned:
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Aspects of quality in register based statistics
• Relevance (for statistics)
• Accuracy (of each record)
• Timeliness (update of registers) and reference time
• Comparability (over time)
• Accessibility and clarity (documentation)
• Administrative concepts
• Coverage and completeness
• Record matching ability
• Compatibility (between file formats)
• ConfidentialitySource: Eurostat meeting on Assessment of quality in statistics 2003
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Master registers and statistical registers
The baseregister
The owner ofthe register
Statistics Norway
A truecopy
The statistical base register
Statistical registers are the building block of statistical systems
The original
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Original register Statistical version
Administration of statistical populations
Address is the link key
Address is the link key
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e-Government: A common data delivery portal
Altinn Portal
ALTINN
NationalQuestionnaire
Repository
CCRERegisterfor Legal Entities
PredefinedRespondent
Roles
Questionnaire design
SNMetadata
SBRBusiness Register
Statistics Norway
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Assosiated registers to CCRE
Central Coordinating Register for Legal Entities (CCRE)
BrønnøysundRegister Centre
Directorate of Taxes
VAT register
Corporate Taxation
Data RegisterRegister
ofBankruptcies
Register ofBusiness
Enterprises
Norwegian Labourand
Welfare Organisation
LotteryInspection
Register
of Foundations
Statistics Norway
(SN)
Business Register(SBR)
Registerof
Employers
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Towards a fully register based census….
CPR
GAB
Education
Social security.
Income
Labour market
PersonsFamiliesCouples
Households DwellingsBuildings
Questionnaires
Dwelling address project:Establishing a link between dwellings and resident persons
Families and householdsDevelop register-basedstatistics
DwellingsDevelop register-basedstatistics
Combined method in 2001: € 12 500 000A register based census in 2011: € 1 250 000 (estimate)
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Multi-dwelling buildings before Census 2001
Main street 8 A
H0101
H0102 H0103
H0104
?
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Multi-dwelling buildings after Census 2001
Main street 8 A
H0101
H0102 H0103
H0104
But quality problems always exist…..
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Registerbased Education Statistics
Each year:
Registerbased data from schoolowners
YearlyStatistics
Tertiary ISCED 5-670 universitiesand colleges
Upper secondaryISCED 3-4.From Counties
National education database(NUDB)
Year XYear X+1Year X+2…..
Longitudinal data:
- Enrollment
- Graduates
- Educational attainment
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Conclusions
• Efficient usage of administrative sources require strong political support
• The legal framework is decisive– should secure NSI’s access to administrative data
• Common e-Government initiatives, like Altinn, are also major contributions to the quality of registers.
• The Norwegian experience: – The multiple usage of administrative registers, and close
cooperation between register owners and (re)users of data has substantially increased the quality of the basic statistical populations, and the statistical output.
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Thank you for your attention!
Questions ?