Identification
IDNO
BGR_2011_LFS_v01_M
Title
Labour Force Survey 2011
Country
| Name | Country code |
|---|---|
| Bulgaria | BGR |
Abstract
The objective of Bulgaria Labour Force Survey 2011 is to provide information on the economic activity of the population of 15 years of age and over and on the most important characteristics of employed and unemployed persons and persons not in the labour force.
Kind of Data
Sample survey data [ssd]
Unit of Analysis
- Households;
- Individuals.
- Individuals.
Coverage
Geographic Coverage
National
Unit of Analysis
- Households;
- Individuals.
- Individuals.
Universe
Whole population excluding the following groups: Persons living in institutions and persons living in indigenous areas.
The usual residents present and the usual residents temporarily absent.
The labour related questions of the survey relate to the population of 15 years old and over.
The usual residents present and the usual residents temporarily absent.
The labour related questions of the survey relate to the population of 15 years old and over.
Producers and sponsors
Authoring entity/Primary investigators
| Agency Name |
|---|
| National Statistical Institute |
Sampling
Sampling Procedure
Sampling frame: Population census
The sampling frame is updated: not updated with a specific frequency
Lowest level of geographic disaggregation for which reliable estimates of the unemployment rate can be produced and their frequency: 28 NUTS 3 districts (annual)
The sample is stratified: Yes
Variables used for stratification: geographic region, urbanisation
Number of sampling stages: 2
Ultimate sampling units: households
Number of ultimate sampling units per sample area: 8
Sample size: 19504 ultimate sampling units per quarter
Sample fraction: 0.65% of the total population
Sample rotation takes place: at the ultimate sampling unit level only
The rotation system results in: the overlap between consecutive survey periods and the overlap between same periods one year apart
Percentage of ultimate sampling units remaining in the sample for two consecutive survey rounds: 50%
Maximum number of times an ultimate sampling unit is interviewed: 4
The sampling frame is updated: not updated with a specific frequency
Lowest level of geographic disaggregation for which reliable estimates of the unemployment rate can be produced and their frequency: 28 NUTS 3 districts (annual)
The sample is stratified: Yes
Variables used for stratification: geographic region, urbanisation
Number of sampling stages: 2
Ultimate sampling units: households
Number of ultimate sampling units per sample area: 8
Sample size: 19504 ultimate sampling units per quarter
Sample fraction: 0.65% of the total population
Sample rotation takes place: at the ultimate sampling unit level only
The rotation system results in: the overlap between consecutive survey periods and the overlap between same periods one year apart
Percentage of ultimate sampling units remaining in the sample for two consecutive survey rounds: 50%
Maximum number of times an ultimate sampling unit is interviewed: 4
Response Rate
Percentage of all eligible ultimate sampling units that are interviewed: 82%
Percentage of refusals in the total non-response: 4.5%
Percentage of refusals in the total non-response: 4.5%
Weighting
The sample is self-weighting: No
Weighting factors used to adjust for: bench-marking (to ensure consistency between survey estimates and those from other reliable source(s), e.g. census)
Weighting factors used to adjust for: bench-marking (to ensure consistency between survey estimates and those from other reliable source(s), e.g. census)
Data Collection
Dates of Data Collection (YYYY/MM/DD)
| Start date |
|---|
| 2011-09-14 |
Mode of data collection
Face-to-face [f2f]
Data Collectors
| Name | Abbreviation |
|---|---|
| National Statistical Institute | NSI |
Data access
Contact
| Name | URI |
|---|---|
| National Statistical Institute | http://www.nsi.bg/en |
Citation requirement
Use of the dataset must be acknowledged using a citation which would include:
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download
Disclaimer and copyrights
Disclaimer
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Contacts
Contact
| Name | URI |
|---|---|
| National Statistical Institute | http://www.nsi.bg/en |
Metadata production
Document ID
DDI_BGR_2011_LFS_v01_M_WB
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Development Data Group | DECDG | The World Bank | Documentation of the DDI |
Date of Production
2014-03-12
Document version
Version 1 (March 2014)