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Invaluable source of micro-data for socio-economic statistics Johan van Rooijen. The Social Statistics Database:. Contents of this pesentation. What does the Social Statistics Database (SSD) contain? Linkage keys Standardization Data and metadata Process Privacy-protection

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Presentation Transcript
contents of this pesentation
Contents of this pesentation
  • What does the Social Statistics Database (SSD) contain?
  • Linkage keys
  • Standardization
  • Data and metadata
  • Process
  • Privacy-protection
  • Output-examples
ssd contents
SSD: contents

The SSD is a central database containing microdata on:

  • Persons
  • Relations between persons
  • Households
  • Jobs
  • Self-eployment
  • Social security benefits
  • State and employer pensions
  • Income
  • Education
  • Hospitalizations
  • Causes of death
  • Criminal offense reports
  • Houses
  • Vehicles

and more……

slide4

Many administrative sources, such as:

  • Population Register
  • Register Income Tax Declarations
  • Administration of Employee Insurance Schemes
  • Police Register
  • Valuation of real estate registration system

Survey:

  • Labour Force Survey

Future developments: more administrative sources, more surveys, big data?

ssd linkage keys
SSD: linkage keys

All mirco datafiles stored in the SSD contain a LINKAGE KEY:

Interlinking microdata is what the SSD is about!

Example:

linking microdata on graduates with data on persons and data

on employment in order to describe the transisiton from

education to labour market participation

slide6

SSD: contents and linkage keys

PIN: person identification number

HIN: household identification number

AIN: adress identification number

EIN: enterprise identification number

ssd standardization
SSD: standardization

standardization is an important aspect of the SSD

  • organization of the IT-infrastructure
  • file formats
  • linkage keys
  • names
  • metadata
slide9

In conclusion:

Microdata-files are linked to other microdata-files by means of a set of standardized linkage keys

Microdata-files are linked to their metadata through the name (file-name / variable-names)

ssd privacy protection
SSD: privacy-protection

Legislation:

  • Statistics Netherlands Act
  • Netherlands Data Protection Act

These laws:

  • authorize Statistics Netherlands to use personal data
  • oblige Statistics Netherlands to take adequate measures aimed at privacy protection
slide12

Privacy protection measures:

  • Linkage keys are anonymous, original personal identifiers are removed from the data
  • Access rights to the SSD are restricted
  • Limited e-mail facilities
  • Staff members have to take an oath
  • Check on disclosure risk of output
research by external researchers through centre for policy related statistics
Research by external researchers (through Centre for Policy-related Statistics)
  • The Netherlands Cancer Institute: linking SSD-data to cancer registration
  • Municipalities: evaluation of their social assistance policy by enriching own data with data from the SSD
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