Labour Force Survey 2006
Sri Lanka, 2006
Identification
LKA_2006_LFS_v01_M
Labour Force Survey 2006
| Name | Country code |
|---|---|
| Sri Lanka | LKA |
Labor Force Survey [hh/lfs]
Sri Lanka Labour Force Survey (LFS) was designed to measure the levels and trends of employment, unemployment and labour force in Sri Lanka.
Since 1990, the survey was being conducted quarterly. 2006 was the seventeeth successive year in which the survey has been repeated.
The employment/unemployment data are required at very short intervals to monitor the program made in the employment generating policies of the government. To satisfy this need, Sri Lanka Labour Force Survey was designed as a quarterly basis survey to measure the levels and trends of employment, unemployment and labour force in Sri Lanka. Thus the survey is repeated four times each year since the first quarter of 1990.
Key objectives of the survey
- To study the economically active / inactive population.
- To analyze employment by major industry group and employment status.
- To determine unemployment rates by level of education and by age group
- To study the informal sector employment.
- To determine the underemployment rates by sector and by major industries
In January 2006, significant improvements have been made to the survey schedule in such aspects as literacy, household economic activities, informal sector employment, underemployment etc. The survey has been started only in February for 2006 in the Northern and the Eastern Provinces but sufficient information could not be collected. Therefore the national level estimates were worked out without taking those two Districts into account.
Sample survey data [ssd]
Individuals from the population aged 10 years or more
Version
v1.0: Full edited dataset, original version for internal DPD use.
2008-04-04
Scope
The scope of LFS 2006 includes the following key sections:-
- Identification Information
- Control Data
- Personal Information
- Information on Labour Force
| Topic | Vocabulary | URI |
|---|---|---|
| LABOUR AND EMPLOYMENT [3] | CESSDA | http://www.nesstar.org/rdf/common |
Coverage
National coverage, excluding the Northern and the Eastern Provinces
Working age population (10 years and above) living in the non-institutional households in Sri Lanka
Producers and sponsors
| Name | Affiliation |
|---|---|
| Department of Census and Statistics | Ministry of Finance and Planning |
| Name | Role |
|---|---|
| Government of Sri Lanka | Funded the study |
Sampling
Sampling Plan and The Sampling Frame
A two stage stratified sampling procedure was adopted to select a sample of 22,000 housing units to be enumerated in the survey. The master sampling frame prepared for 2001 - Census of Population and Housing was used as the sampling frame for the selection of sample for the Labour Force Survey 2006.
Sample Size
The quarterly survey was conducted since 1990 using a sample of 2,000 housing units per quarter in areas other than North and East, and the sample size was increased to 4,000 housing units per quarter 1996 and continued thereafter. However, in 1992 and 1997, an annual sample of 20,000 housing units was selected to give reliable district level estimates. In 2004 again 20,000 housing units were selected for the survey. However, in order to provide district level estimates precisely, it was decided to use 20,000 - 25,000 housing units as the annual sample. As such, in 2006, the annual sample of 22,000 housing units was selected.
Sample Allocation
Allocation of 2,000 Primary Sampling Units (PSU's) for the Districts and sectors were done using the Neymann Allocation procedure. In other words, the allocation of PSU's to strata was disproportionate, designed to produce estimates of acceptable reliability for each area for which separate estimates were needed. Then The District sample was equally distributed among the 12 monthly rounds.
Selection of Primary Sampling Units (PSU)
Primary sampling units are the census blocks prepared for the Census of Population and Housing - 2001. The sample frame, which is a collection of all census blocks in the domain, was used for the selection of primary sampling units. A sample of 2,200 primary sampling units was selected from the sampling frame for the 2006 labour force survey.
Selection of Secondary Sampling Units (SSU)
Secondary Sampling Units are the housing units in the selected 2,200 primary sampling units (census blocks). From each primary sampling unit 10 housing units (SSU) were selected for the survey.
Survey instrument
The 2006 LFS concepts and methods were very similar to those introduced at the beginning of the survey in 1990. However, some changes have been made over the years to improve the accuracy and usefulness of the data.
In the beginning of January 2006, some significant improvements were made to the labour force survey schedule in order to fulfill the requirements of it’s users and also to provide additional information for the planning purposes. This was done after carefully reviewing of the LFS schedule with the Assistance of Economic and Social Commission for Asia and the Pacific (ESCAP) Adviser. The revision was made focusing on literacy, household economic activities, informal sector employment and underemployment etc. This revised version was introduced for the survey conducted in 2006 first quarter, and it will be used in future as well.
Data collection
| Start | End | Cycle |
|---|---|---|
| 2006-01-01 | 2006-12-31 | 12 months |
| Name | Affiliation |
|---|---|
| Department of Census and Statistics | Ministry of Finance and Planning |
Field supervision
Senior officers of the DCS visited the district to check whether enumerators have done their work properly. These supervising officers were expected to submit their reports to the heads of the relevant divisions based on their observations.
Fieldwork
The field work of the survey for the year 2006 was done in all 12 months from January to December 2006. Listing operation went along for a period of 12 months starting from November 2005 to October 2006. For each primary sampling unit, updating was done, about two months prior to the scheduled interviewing. As such, for example, the census blocks which were surveyed in April, were updated in February.
Statistical officers of the DCS were involved in the listing operation prior to the survey and also in the survey data collection operation. Each statistical officer is responsible of doing all statistical activities in a Divisional Secretariat office to which she/he is attached. These officers were given a thorough training before they were entrusted with the survey operations. In each district, there was an officer who was in charge of the statistical activities in the district.
Data appraisal
The estimation procedure is given in the section 2.6 in the Annual Report.
The Annual Report is attched in the External Resources Section.
The adjustments for non-response is given in the section 2.7 in the Annual Report.
The Annual Report is attched in the External Resources Section.
Data Access
| Name | Affiliation | URL | |
|---|---|---|---|
| Director General | Department of Census and Statistics | http//:www.statistics.gov.lk | dgcensus@sltnet.lk |
| Is signing of a confidentiality declaration required? | Confidentiality declaration text |
|---|---|
| yes | Under the Statistical ordinance, micro data cannot be released with identifications for public use. Procedures are in place to ensure that information relating to any particular individual person, household or undertaking will be kept strictly confidential and will not be divulged to external parties. Information on individual or individual Household/establishment will not be divulged or published in such a form that will facilitate the identification of any particular person or establishment as the data have been collected under the Census/Statistical ordinance, according to which the information at individual level cannot be divulged and such information is strictly confidential. |
The dataset has been anonymized and is available as a Public Use Dataset. It is accessible to all for statistical and research purposes only, under the following terms and conditions:
-
The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement.
-
The data will be used for statistical and scientific research purposes only. They will be used solely for reporting of aggregated information, and not for investigation of specific individuals or organizations.
-
No attempt will be made to re-identify respondents, and no use will be made of the identity of any person or establishment discovered inadvertently.
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No attempt will be made to produce links among datasets provided by the Department or among data from the Department and other datasets that could identify individuals or organizations.
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Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the Department will cite the source of data in accordance with the Citation Requirement provided with each dataset.
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An electronic copy of all reports and publications based on the requested data will be sent to the Department
The following rules apply to micro data released by the Department of Census and Statistics.
• Only the requests of Government Institutions, Recognized Universities, Students, and selected international agencies are entertained. However, the Data users are required to strictly adhere to
the terms stipulated in the agreement form.
• All the data requests should be made to Director General (DG) of the DCS as the sole authority of releasing data is vested with the DG, DCS. DCS of Sri Lanka reserves sole right to approve or reject any data request made depending on the confidential nature of the data set and intended purpose of the study or analysis.
• Requests for micro data should be made through the agreement form designed by DCS for this purpose (Form D.R.1). The agreement form should be filled in triplicate and the Study/project proposal should accompany the filled agreement form. If requests are made for the micro data of more than one survey, a separate agreement should be signed.
• If the data request is from a student a letter from the respective Dept. Head/Dean/Supervisor, recommending the issue of data, should also be accompanied.
• If the request is approved only 25% of the data file is released at the first stage. The release of the total data file is considered only after reviewing the draft report prepared on the basis of the 25% sample data file.
• The released Data file should be used only for the specific study/Analysis mentioned in the agreement form and shall not be used for any other purpose without the prior approval of the Director General of the DCS. Moreover, Copies of the micro-data file, obtained from the DCS, shall not be given to anyone else without the prior written approval of the Director General of the DCS.
• The draft report of the Study/Analysis should be submitted to the DCS and the concurrence of the DG, DCS, should be obtained before publishing it. Once published, a copy of the final report should be submitted to the DCS.
[Department : The Department of Census and Statistics]
Source : http://www.statistics.gov.lk/databases/data%20dissemination/DataDissaPolicy_2007Oct26.pdf
"Department of Census and Statistics, Sri Lanka Labour Force Survey - 2006, Version 1.0 of the public use dataset (April 2008), provided by the National Data Archive, Data Processing Division, www.statistics.gov.lk"
Disclaimer and copyrights
The Department of Census and Satatistics bears no responsibility for any results or interpretations arising from the secondary use of the data
(C) 2008, Department of Census and Statistics
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Information Unit | Department of Census & Statistics | information@statistic.gov.lk | http//:www.statistics.gov.lk |
| Sample Survey Division | Department of Census & Statistics | sample.survey@statistic.gov.lk | http//:www.statistics.gov.lk |
| Microdata Library | World Bank | microdatalib@worldbank.org |
Metadata production
DDI_LKA_2006_LFS_v02_M
| Name | Affiliation | Role |
|---|---|---|
| Department of Census and Statistics | Ministry of Finance and Planning | Metadata preparation/ documentation |
2008-04-04
Metadata version
Version 1.0 (April 2008)
Version 2.0 (August 2013). DDI and ID numbers edited by World Bank for World Bank Microdata Library