Coverage | ||||
Coverage | Household concept | Definition of household for the LFS | Inclusion/exclusion criteria for members of the household | Questions relating to employment status are put to all persons aged ... |
Persons in private households | Households are register based, on these sources • Familial ties: • Kinship: • Cohabitation:
As of today, there are two household types the register is unable to identify. These are households that consists of three or more single-person families, and households with two or more multi-person families. Data • The National Population Register The different registers were joined by national identity number or by address. Structure Consequently, we arrange the persons registered in each building according to family ties. This is done on the building level and not on the housing unit level because incorrect registrations of housing unit numbers are prevalent, leading, in many cases, to families being registered in different parts of building complexes. We give married persons, partners, and parents with children a family number, in addition to a family type, e.g. ‘spouses with children’. Unmarried, childless persons receive unique family numbers and are considered one-person families. Then we identify people living in institutions. These includes persons living on addresses with businesses such as prisons, somatic nursing homes, psychiatric nursing homes, retirement homes, and children homes, in addition to people living in buildings that are registered as nursing homes. These are removed from the register since they are not considered private households. Some of the people who live on addresses like those previously mentioned are employees and therefore kept in the household register. As of today, we are only able to identify around 20–30 % of the total amount of non-private households due to lack of data. Next, we utilize the Land Registry for finding people with shared real estate and shared housing cooperative apartments, respectively. Then we assemble the households. The previously constructed family household numbers are converted to household numbers, which is the national id of the oldest person in the group. Most of the already identified family households remain as they are through this section. In some cases, one person may be merged with a multi-person family household, e.g. a single parent with children will merge together with a one-person family of opposite gender, if they are the sole inhabitants of an address; however, one-person families are what predominately changes. The code constructing the households loops through each person on an address for each type of household. ‘More secure’ household types (higher probability of being households in actu) are processed earlier. For example, looping through people registered on an address, we look for persons with shared property before we look for identical moving date. Finally we code the relations between the members of the households to the reference person of the household based on kinship. We also create a new set of categories for different types of households to make the register more easily comparable to the already extant habituation register. |
15-89 years of age |
Population concept | Specific population subgroups | ||||
Primary/secondary students | Tertiary students | People working out of family home for an extended period for the purpose of work | People working away from family home but returning for weekends | Children alternating two places of residence | |
Persons in the national population register | Included in the household they de jure live in (which for children normally will be with at least one parent) | No special rules. Persons are sampled from their population register address. | No special rules. Persons are sampled from their population register address. | No special rules. Persons are sampled from their population register address. | Population register address |
Reference week | |
Fixed week (data collection refers to one reference week, to which the observation unit has been assigned prior to the fieldwork) | Rolling week (data collection always refers to the week before the interview) |
X |
Participation is voluntary/compulsory? | |
Compulsory |
[not requested for the LFS quality report]
[not requested for the LFS quality report]
[not requested for the LFS quality report]
[not requested for the LFS quality report]
[not requested for the LFS quality report]
[not requested for the LFS quality report]
Sampling design & procedure | |||||
Sampling design (scheme; simple random sample, two stage stratified sample, etc.) | Base used for the sample (sampling frame) | Last update of the sampling frame (continuously updated or date of the last update) | Primary sampling unit (PSU) | Final sampling unit (FSU) | Date of sample selection |
One-stage random stratified sampling | Population register and household register | Quarterly updated | Person | NA | 21.12.2021 22.03.2022 20.06.2021 20.09.2021 |
Sampling design & procedure | ||||
First (and intermediate) stage sampling method | Final stage sampling method | Stratification (variable used) | Number of strata (if strata change quarterly, refer to Q4). | Rotation scheme (2-2-2, 5, 6, etc.) |
One-stage random stratified sampling | age, region, register labour market status | 56 | 8 |
Yearly sample size & Sampling rate | |
Overall theoretical yearly sampling rate | Size of the theoretical yearly sample |
(i.e. including non-response) | (i.e. including non-response) |
1.6 % of the population 15-89 years | 84 000 reference persons plus 12 000 household members |
Quarterly sample size & Sampling rate | |
Overall theoretical quarterly sampling rate |
Size of the theoretical quarterly sample |
(i.e. including non-response) |
(i.e. including non-response) |
0.4 % of population 15-89 years | 21 000 reference persons plus 3000 household members |
Use of subsamples to survey structural variables (wave approach) | |||
Only for countries using a subsample for yearly variables | |||
Wave(s) for the subsample | Are the 30 totals for ILO labour status (employment, unemployment and inactivity) by sex (males and females) and age groups (15-24, 25-34, 35-44, 45-54, 55+) between the annual average of quarterly estimates and the yearly estimates from the subsample all consistent? (Ref.: Commission Reg. 430/2005, Annex I) (Y/N) | If not please list deviations | List of yearly variables for which the wave approach is used (Ref.: Commission Reg. 377/2008, Annex II) |
2 and 6 | Yes | All yearly variables |
Brief description of the method of calculating the quarterly core weights | Is the sample population in private households expanded to the reference population in private households? (Y/N) | If No, please explain which population is used as reference population | Gender is used in weighting (Y/N) | Which age groups are used in the weighting (e.g., 0-14, 15-19, ..., 70-74, 75+)? | Which regional breakdown is used in the weighting (e.g. NUTS 3)? | Other weighting dimensions |
A one-step multiple model-calibration method (e.g. Montanari and Ranalli 2009) is used to calculate quarterly individual weights. There is no additional step to adjust for non-response with one-step approach (Lundström and Särndal 1999). Thus, design weights are directly used as initial weights in the calibration. At first, monthly weights are calculated by applying calibration to data of each month of the quarter of interest, and then quarterly weights are calculated as a weighted average of monthly weights, where the weights are defined as proportional to the number of weeks of the associated month. Model-calibration approach may provide better estimates with higher precision than the usual linear calibration method by enabling to describe the relationship between the output variable and the explanatory variables by a generalized linear model, which also captures linear regression (Wu and Sitter 2001). The probabilities of being employed, unemployed and outside of labour force are predicted via a multinomial logistic regression model, and then these predicted probabilities are used as calibration variables in addition to other auxiliary variables obtained from register data (Oguz-Alper 2018). | Yes | Y | 0-14, followed by five year age groups, followed by 75-89. Also 15-17, 18-19, 55-61, 62-66, and 67-74 | NUTS2 (6 regions) | - five-year age groups from 15 to 74 cross-classified by gender |
Brief description of the method of calculating the yearly weights (please indicate if subsampling is applied to survey yearly variables) | Gender is used in weighting (Y/N) | Which age groups are used in the weighting (e.g., 0-14, 15-19, ..., 70-74, 75+)? | Which regional breakdown is used in the weighting (e.g. NUTS 3)? | Other weighting dimensions |
Linear calibration of quarterly weights, as described in Deville, J.-C., og Sarndal, C.-E. (1992): Calibration Estimators in Survey Sampling. Journal of the American Statistical Association, 87(418), 376–382.Doi.org . Implemented by using the calmar sas-macro from INSEE. | Y | 25-34, 35-44, 45-54, 15-74 | NUTS2 |
Brief description of the method of calculating the weights for households | External reference for number of households etc.? | Which factors at household level are used in the weighting (number of households, household size, household composition, etc.) | Which factors at individual level are used in the weighting (gender, age, regional breakdown etc.) | Identical household weights for all household members? (Y/N) |
Integrative calibration is used to calculate the yearly household weights. Household design weights, which are the same for all individuals in the same household, are used as initial weights in the calibration. With integrative calibration, not only both person and household-level calibration conditions are satisfied, but also all eligible individuals in a household take the same household weight. | Private households (cost sharing) | - number of households by household size groups (1, 2, 3, 4, 5+) |
- gender |
Y |
The variables used for stratification are the Districts and the urban/rural areas within each district.
Divergence of national concepts from European concepts |
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(European concept or National proxy concept used) List all concepts where any divergences can be found |
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Is there a divergence between the national and European concepts for the following characteristics? | (Y/N) | Give a description of difference and provide an assessment of the impact of the divergence on the statistics |
Definition of resident population (*) | N | |
Identification of the main job (*) | N | |
Employment | N | |
Unemployment | N |
Changes at CONCEPT level introduced during the reference year and affecting comparability with previous reference periods (including breaks in series) | |||||
Changes in | (Y/N) | Description of the impact of the changes | Statistics also revised backwards (if Y: year / N) | Variables affected | Break in series to be flagged (if Y: year and quarter/N) |
concepts and definition | N | ||||
coverage (i.e. target population) | N | ||||
legislation | N | ||||
classifications | N | ||||
geographical boundaries | N |
Changes at MEASUREMENT level introduced during the reference year and affecting comparability with previous reference periods (including breaks in series) | |||||
Changes to | (Y/N) | Description of the impact of the changes | Statistics also revised backwards (if Y: year / N) | Variables affected | Break in series to be flagged (if Y: year and quarter/N) |
sampling frame | N | ||||
sample design | N | ||||
rotation pattern | N | ||||
questionnaire | N | ||||
instruction to interviewers | N | ||||
survey mode | N | ||||
weighting scheme | N | ||||
use of auxiliary information | N |