Quarterly Labour Force Survey 2021, Quarter 1 - South Africa

Abstract
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The Quarterly Labour Force Survey (QLFS) is a household-based sample survey conducted by Statistics South Africa (Stats SA). It collects data on the labour market activities of individuals aged 15 years or older who live in South Africa.

Geographic coverage
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National coverage

Analysis unit
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Individuals

Universe
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The QLFS sample covers the non-institutional population of South Africa with one exception. The only institutional subpopulation included in the QLFS sample are individuals in worker's hostels. Persons living in private dwelling units within institutions are also enumerated. For example, within a school compound, one would enumerate the schoolmaster's house and teachers' accommodation because these are private dwellings. Students living in a dormitory on the school compound would, however, be excluded.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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The QLFS uses a master sampling frame that is used by several household surveys conducted by Statistics South Africa. This wave of the QLFS is based on the 2013 master frame, which was created based on the 2011 census. There are 3324 PSUs in the master frame and roughly 33000 dwelling units.

The sample for the QLFS is based on a stratified two-stage design with probability proportional to size (PPS) sampling of PSUs in the first stage, and sampling of dwelling units (DUs) with systematic sampling in the second stage.

For each quarter of the QLFS, a quarter of the sampled dwellings are rotated out of the sample. These dwellings are replaced by new dwellings from the same PSU or the next PSU on the list. For more information see the statistical release.

Mode of data collection
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Computer Assisted Telephone Interview [cati]

Research instrument
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The survey questionnaire consists of the following sections:
- Biographical information (marital status, education, etc.)
- Economic activities in the last week for persons aged 15 years and older
- Unemployment and economic inactivity for persons aged 15 years and above
- Main work activity in the last week for persons aged 15 years and above
- Earnings in the main job for employees, employers and own-account workers aged 15 years and above

From 2010 the income data collected by South Africa's Quarterly Labour Force Survey is no longer provided in the QLFS dataset (except for a brief return in QLFS 2010 Q3 which may be an error). Possibly because the data is unreliable at the level of the quarter, Statistics South Africa now provides the income data from the QLFS in an annualised dataset called Labour Market Dynamics in South Africa (LMDSA). The datasets for LMDSA are available from DataFirst's website.

摘要
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南非洲统计局（Stats SA）执行的季度劳动力调查（QLFS）是一项基于家庭的抽样调查。该调查收集了15岁及以上居住在南非洲的个体在劳动力市场的活动数据。
地理覆盖范围
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全国覆盖
分析单元
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个体
总体
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QLFS样本覆盖了南非洲的非机构人口，但有一个例外。唯一包含在QLFS样本中的机构子群体是工人宿舍的个体。居住在机构内私人住宅单元的人员也被统计在内。例如，在学校园区内，应统计校长住宅和教师宿舍，因为这些是私人住宅。然而，居住在学校园区宿舍的学生则被排除在外。
数据类型
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样本调查数据 [ssd]
抽样程序
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QLFS采用由南非洲统计局执行的多个家庭调查所使用的母抽样框架。本波QLFS基于2013年的母框架，该框架是基于2011年的人口普查创建的。母框架中有3324个抽样单元（PSU），大约有33000个住宅单元。
QLFS的样本基于分层两阶段设计，第一阶段采用与规模成比例的概率（PPS）抽样PSU，第二阶段采用住宅单元（DU）的系统抽样。
对于QLFS的每个季度，样本中四分之一的住宅被轮换出去。这些住宅由同一PSU或列表中的下一个PSU的新住宅替代。更多信息请参阅统计发布。
数据收集方式
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计算机辅助电话访谈 [cati]
研究工具
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调查问卷包括以下部分：
- 传记信息（婚姻状况、教育等）
- 15岁及以上人员在过去一周的经济活动
- 15岁及以上人员的失业和经济不活跃情况
- 15岁及以上人员在过去一周的主要工作活动
- 15岁及以上雇员、雇主和自营职业者的主要工作收入
自2010年起，南非季度劳动力调查收集的收入数据不再包含在QLFS数据集中（除2010年第三季度的短暂回归，可能是一个错误）。可能是因为季度层面的数据不可靠，南非洲统计局现在在名为“南非劳动力市场动态”（LMDSA）的年度化数据集中提供QLFS的收入数据。LMDSA的数据集可在DataFirst的网站上获取。