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Estimation of Dutch census tables. Jacco Daalmans. History. Background. Virtual Census Some Sources: Population Register (PR) - Social security registers Labour force Surveys. Contents. Compilation method Weighting Results. Compilation. Linkage 2) Micro- integration - PowerPoint PPT Presentation
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Jacco Daalmans
Estimation of Dutch census tables
History
2
Background
– Virtual Census
– Some Sources: ‐ Population Register (PR)- Social security registers- Labour force Surveys
3
Contents
– Compilation method
– Weighting
– Results
4
Compilation
1) Linkage
2) Micro-integrationCorrection of inconsistencies at unit level
3) WeightingConsistent estimation of tables
5
Population
Register
Othe
r dat
asou
rces
Weighting
6
Registers
Units
Variables
Sample Surveys
EducationOccupation
Demographic + Socio economic variablesExcept: education and occupation
16,500,000 300,000
Repeated weighting: Basics
– Developed by Statistics Netherlands – Numerical consistency
- Succesfully applied to 2001 Census, but many estimation problems for 2011 census
- Therefore repeated weighting was extended
7
Zero cell problem
Categories that exist in the population, but that do not appear in a sample survey, e.g.
“99 years old people”.
8
Solution – zero cell problem
Epsilon method:
– Filling in artificial ‘ghost values’
– Prevents estimation problems
– But creates new problem: Implausible estimates.
9
Solution – implausible results
– Step 1: Auxiliary tables• One or two-dimensional • No epsilon method
– Step 2: Demanded tables • High-dimensional • Consistent with auxiliary tables (step 1).• Epsilon method
10
Solution – implausible results
– Step 1: Auxiliary tables:(e.g. Sex x Education Age x Education etcetera)
– Step 2: Demanded tables (e.g. Sex x Age x Citizenship x
Education)
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Results
– All required tables have been estimated succesfully
– All tables fully consistent: mutually and with registers
– Little deviation from other publications (LFS)
– Drawback: No variances12
Thank you
Very much!
13