Labour Force Survey - 1997 - Sri Lanka

Abstract
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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

Geographic coverage
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National coverage. ( Excluding Nothern and Eastern provinces )

Analysis unit
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Individuals from the population aged 10 years or more

Universe
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Working age population (10 years and above) living in the non-institutional households in Sri Lanka

Kind of data
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Sample survey data [ssd]

Sampling procedure
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The Survey is conducted quarterly to produce estimates of employment, unemployment, labour force participation and basic demographic characteristics. The scope of coverage includes all households in Sri Lanka.

The list of housing units created for Demographic survey 1994 were taken as sample frame. Sample lists were selected from the above frame taken as Primary Sampling Unit (PSU). A systematic Sample of 10 housing units per PSU was selected on final sampling units.

1600 Census Blocks were selected by PPS systematic Sampling. A listing operation was conducted in each selected PSU to provide a frame for the second stage of selection. The selection of housing units within PSU was systematic with random start.

Sampling deviation
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The field of survey conducted in year 1997 was confined to seven province of the country excluding the Northern and the Eastern provinces due to the prevailing situation in the above two provinces.

Mode of data collection
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Face-to-face [f2f]

Research instrument
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The questionnaire covered questions under four main headings such as

Identification Information
Control data
Personal Information
Labour force Information
Questions common to all employed persons

Current survey concepts and methods are 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. [Questionnaire is attached in the External Resources section].

摘要
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为监控政府就业生成政策的实施效果，需要以极短的时间间隔收集就业与失业数据。为此，斯里兰卡劳动力调查被设计为季度性调查，以衡量斯里兰卡就业、失业和劳动力水平及其趋势。因此，自1990年第一季度起，该调查每年重复四次。

调查的关键目标
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- 研究经济活跃/不活跃的人口。
- 分析按主要行业分组和就业状态划分的就业情况。
- 确定按教育水平和年龄组划分的失业率。
- 研究非正规部门的就业情况。
- 确定按部门和主要行业划分的过度就业率。

地理覆盖范围
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全国范围。（不包括北部和东部省份）

分析单位
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10岁及以上的个人

总体
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居住在斯里兰卡非机构家庭的10岁及以上的工作年龄人口

数据类型
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样本调查数据 [ssd]

抽样程序
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该调查按季度进行，以产生就业、失业、劳动力参与率和基本人口统计学特征的估计值。覆盖范围包括斯里兰卡的所有家庭。

1994年人口普查调查创建的住宅单位清单被用作抽样框架。从上述框架中选取样本清单作为一级抽样单位（PSU）。每个PSU最终抽样单元中选取了10个住宅单位的系统抽样。
1600个普查区通过PPS系统抽样选取。在每个选定的PSU中进行列表操作，为第二阶段的选择提供框架。PSU内的住宅单位选择采用系统抽样，以随机开始。

抽样偏差
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由于北部和东部省份的当前情况，1997年的调查领域仅限于七个省份，不包括北部和东部省份。

数据收集方式
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面对面 [f2f]

研究工具
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问卷涵盖了以下四个主要标题下的问题：
- 识别信息
- 控制数据
- 个人信息
- 劳动力信息
- 适用于所有雇员的共同问题

当前调查的概念和方法与1990年调查开始时引入的方法非常相似。然而，多年来进行了一些调整，以提高数据的准确性和实用性。[问卷附于外部资源部分]。