1. LAMAS Working Group 12-13 December 2013
Agenda Item 2.4 Modularisation and sub-sampling

2. Why sub-sampling? Not all output needs quarterly frequency
Computer assisted data collection makes it technically possible
Could reduce costs for data collection
Enables shorter questionnaires per interview
To accommodate CAWI data collection

3. Modularity as framework for sub-sampling
Modules as building blocks (rather than variables)
Defined by target group, contents, frequency and precision of measurement
Linked to questionnaire
Per module assign:
Frequency
(sub-)sample

4. Sub-sampling is a design option
Sub-sampling (in a modular context) allows countries to design their LFS
Taking into account national requirements and circumstances …
While meeting EU requirements …
And respecting a few design rules
Applying sub-sampling is not compulsory

5. Design rules for sub-sampling
Two sets of annual modules:
BACKGR & JOBDET
Corresponding sub-samples are defined by waves
Freedom to assign sub-samples to waves
as long as BACKGR wave<=JOBDET wave
Sub-sampling of households using BACKGR

6. AHMs/SAMs assigned to sub-samples
BACKGR general background
AHMs: Migrants (2014), Reconciliation of work and family life (2010)
Household as observation unit
JOBDET job details
AHMs: Work organisation (2015), young people on the labour market (2016)
Individual as primary observation unit
AHM in 2nd quarter is not allowed anymore

7. Rotational scheme LFS with 5 waves

8. Two sub-samples with 5 waves

9. Possible design variants (1)

10. Possible design variants (2)

11. Possible design variants (3)

12. Possible design variants (4)

13. Possible design variants (5)

14. No sub-sampling

15. Sub-sampling of annual modules

16. Sub-sampling of households

17. The LAMAS working group is asked to
agree on the proposal for a modular EU LFS with 2 blocks of (multi-)annual modules
identify issues that need further development

18. Thank you for your attention!

19. Possible design variants (6)