1. LAMAS Working Group 29 June-1 July 2016
Agenda Item 3.2 IESS - Breaks in time series
Eurostat

2. Overview Background Potential breaks in time series Actions taken
Communication strategy
Eurostat

3. 1 - Background 23/24 February 2016: first discussion in the DSS
April 2016: Written consultation of the DSS on:
Main sources of potential breaks in time series
Actions to be taken
Planned communication strategy
with a focus on LFS, SILC and ICT-HH
All 28 MS answered

4. 2 – Potential breaks in time series
Changes in:
LFS
SILC
ICT-HH
Definition, variables, questionnaire, classification 44 10 3
Data sources 4
Sampling, weighting, imputation 20 31 5
Fieldwork 28 18 12
Law 1
TOTAL 97 70

5. 2 – Potential breaks in time series
Changes linked to IESS:
LFS
SILC
ICT-HH
Definition, variables, questionnaire, classification
41/44
4/10
2/3
Data sources
4/4
0/10
Sampling, weighting, imputation
9/20
8/31
2/5
Fieldwork
9/28
2/18
2/12
Law
0/1
1/1
TOTAL
63/97
15/70
6/20

6. 3 - Actions taken
Source specific
Country specific
Including pilot study, introduction of an independent sample run in parallel, gradual implementation, application of a mathematical model
 Follow-up at Working Group level

7. 4 – Communication strategy
Before change implemented
After change implemented
Initial user consultation process
Detailed description in meta-data, quality report and user guides on national website
External experts involved in methodological side of the project
Footnotes in tables / flag data when published
User seminar
Press information notice/release/conference
Methodological papers/methodological note/groups with central users
Correct past series
Convene a new labour market and demography liaison group

8. 5 – Exchange of views form
Common strategy for the introduction of the model questionnaire on employment/unemployment needed
All changes implemented at the same time for all countries
Parallel data collections for one quarter to calculate factors to link old and new series

9. LAMAS is invited to give views/agree on the Eurostat proposal that:
A common strategy at European level is:
Proposed by LAMAS
Linked to changes in the definitions of employment and unemployment and to the introduction of flow chart/model questionnaire
Is defined by end 2017 taking into account the proposal from LAMAS and results of feasibility studies