1. LAMAS Working Group 17-18 June 2015
Agenda Item 2.3 Household subsampling in the future LFS

2. Decisions taken Sub-sampling in general decided
Two blocks of structural variables
AHM assigned to either one depending on the topic

3. Decisions to take Variables requested for household sub-sampling
Size requirement for household sub-sample
Consistency requirements for all kinds of sub-sampling

4. Current use of HH data JAF Eurostat database Tailor-made extractions
Use of micro-data by researchers

5. Current description of variables to be collected
In basic act
Defined negatively
Not fully in line with needs

6. Current description of variables to be collected
Everything except variables under the headings:
search for employment
education and training
previous work experience of person not in employment
situation one year before the survey

7. New system proposed Focus on needs Defined positively
Trying to avoid complicated variables

8. New system proposed Five groups Technical and household information
Demographic information
ILO labour status
Education
Others

9. Exchange of Views – HH-variables
"Individual" countries happy for reduction
Some comments on specific variables
Few views on extensions – mainly supported by "household" countries

10. Sample size – 1
Simple solution: Once (theoretically) for each individual in the sample
Previous proposal on absolute size was not supported in December 2014
Full overlap with AHM when required by regulation

11. Sample size – 2 Comments in exchange of views: General support
Sweden proposes to keep an absolute measure
Combine criteria?

12. Current weights COEFFQ -> standard quarterly weights
COEFFY -> weights for annual results when not equal to annual average (will be split in two in the future system)
COEFFH -> special weights for household sample
COEFFAHM -> weights if AHM not equal to COEFFQ or COEFFY

13. COEFFH What is this weight used for?
-> all tables under the "household" heading, also on persons/adults
Why not use other weights with just info on household members?
-> such a weight does not exist! *

14. Standard data "Household" countries: "Individual" countries:
-> data for all household members
"Individual" countries:
-> data for one person in the household – limited information for household members of a sub- sample

15. COEFFQ gives full population

16. COEFFQ gives full population
COEFFY for yearly subsample

17. COEFFQ gives full population
Household sub-sample
Reference persons
Other household members
Quarterly sample

18. The household dilemma!
Why not use the household background information (labour market attachment etc.) to cross with the standard full list of variables?

19. Add up to number of households
Household sub-sample
Reference-persons
Other household members
Quarterly sample

20. We miss the weights!
With the current weights it is not possible to make the reference persons of household data add up to the population
-> (COEFFH) when HHLINK=1 gives the number of households in the country

21. Options for a solution Adding variables to all household members
-> too costly?
Adding another weight
-> too complicated?
Adding background variables to all reference persons
-> how to get ILO-status of household members?

22. General requirements for HH-weights
Weighted number of records should equal the total population (i.e. 0+).
Weighted number of records defined as adults should equal a similar figure in the population.
Weighted number of reference persons (HHLINK=1) should equal the number of households in the country.
No requirement that weights should be equal for all persons in a household, but strongly encouraged for analytical reasons

23. Consistency requirements for sub-sampling in general
Extend current requirements for wave-approach to household sub-sampling while splitting oldest age group (55+ split into and 65+):
ILO-status x sex x age groups
In total 36 constraints
AHM constraints to be defined per module

24. Exchange of views – weighting
General support for requirements and constraints
Follow-up:
Eurostat household tables must give result on number of households in a given country
Results with HH info require info from all HH members
Constraints can still be reviewed for feasibility

25. LAMAS is asked to
agree on the new list of variables required from all household members in case of household sub-sampling
indicate a position on extensions 1 and 2 regarding the variables in group 5
agree on the requirement in terms of size of the household sub-sample
agree on the proposed requirements on consistency across sub-samples, as well as the recommendations for household weights