Labour Force Survey - 1999 - 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 Units (PSU). A systematic Sample of 15 housing units per PSU was selected on final sampling
units.

The total annual sample size is 15915 housing units, distributed as 265 PSUs per each quarter and 15 housing units (SSUs) per PSU. The allocation to the domains aims at ensuring approximately equal levels of reliability from domain to domain. .

The 1,061 PSUs were selected by systematic Sampling from the PSUs created for Demographic Survey - 1994. 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 1999 was confined to seven province of the country excluding the Northern and the Eastern provinces due to the prevailing situation there.

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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政府就业生成政策实施情况的监控需要以极短的间隔获取就业/失业数据。为满足这一需求，斯里兰卡劳动力调查被设计为一项季度性调查，旨在衡量斯里兰卡就业、失业和劳动力的水平和趋势。因此，自1990年第一季度以来，该调查每年重复四次。

调查的主要目标
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- 研究经济活跃/不活跃的群体。
- 分析主要产业组和就业状态下的就业情况。
- 确定不同教育水平和年龄组的失业率。
- 研究非正规部门的就业情况。
- 确定各行业和主要产业中的过度就业率。

地理覆盖范围
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全国覆盖。（不包括北部和东部省份）

分析单元
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10岁及以上的总人口个体

总体
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居住在斯里兰卡非机构性家庭中的工作年龄人口（10岁及以上）

数据类型
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样本调查数据 [ssd]

抽样程序
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该调查每季度进行一次，以产生就业、失业、劳动力参与率和基本人口统计特征的估计。覆盖范围包括斯里兰卡的所有家庭。

1994年人口调查创建的住宅单位清单被用作抽样框架。从上述框架中选取的样本清单作为一级抽样单位（PSU）。每个PSU选择了15个住宅单位作为最终抽样单位。

总年样本量为15,915个住宅单位，每个季度分配265个PSU，每个PSU分配15个住宅单位（SSU）。对域的分配旨在确保从域到域的可信度水平大致相等。

1,061个PSU是通过从为1994年人口调查创建的PSU中进行系统抽样选出的。在每个选定的PSU中进行了清单操作，以提供第二阶段选择的框架。PSU内部的住宅单位选择是系统的，以随机开始。

抽样偏差
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1999年进行的调查范围仅限于国家内的七个省份，不包括北部和东部省份，这是由于当地的情况。

数据收集方式
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面对面 [f2f]

研究工具
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问卷涵盖了四个主要标题下的问题，例如
- 识别信息
- 控制数据
- 个人信息
- 劳动力信息
- 适用于所有就业人员的共同问题

当前调查的概念和方法与调查开始于1990年的概念和方法非常相似。然而，多年来进行了一些变更，以提高数据的准确性和实用性。[问卷附在外部资源部分]。