Labour Market Dynamics in South Africa 2019 - South Africa

Abstract
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The Quarterly Labour Force Survey (QLFS) is a household-based sample survey conducted by Statistics South Africa (StatsSA). It collects data on the labour market activities of individuals aged 15 years or older who live in South Africa. Since 2008, StatsSA have produced an annual dataset based on the QLFS data, "Labour Market Dynamics in South Africa". The dataset is constructed using data from all four QLFS datasets in the year. The dataset also includes a number of variables (including income) that are not available in any of the QLFS datasets from 2010.

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 except for those in workers' hostels. However, persons living in private dwelling units within institutions are 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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Each year the LMDSA is created by combining the QLFS waves for that year and then including some additional variables. The QLFS master frame for this LMDSA was based on the 2011 population census by Stas SA. The sampling is stratified by province, district, and geographic type (urban, traditional, farm).

There are 3324 PSUs drawn each year, using probability proportional to size (PPS) sampling. In the second stage Dwelling Units (DUs) are systematically selected from PSUs. The 3324 PSU are split into four groups for the year, and at each quarter the DUs from the given group are replaced by substitute DUs from the same PSU or the next PSU on the list (in the same group). It should be noted that the sampling unit is the dwelling, and the unit of observation is the household. Therefore, if a household moves out of a dwelling after being in the sample for, two quarters and a new household moves in, the new household will be enumerated for two more quarters until the DU is rotated out. If no household moves into the sampled dwelling, the dwelling will be classified as vacant (or unoccupied).

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

Research instrument
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The survey questionnaire consists of the following sections:
- Particulars of each person in the household
- Economic activities in the last week for persons aged 15 years
- Unemployment and economic inactivity for persons aged 15 years
- Main work activity in the last week for persons aged 15 years
- Earnings in the main job for employees, employers and own-account workers aged 15 years
- Migration for all persons aged 15 years

Response rate
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For more information see the statistical release that accompanies the data.

Data appraisal
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The statistical release notes that missing values were "generally imputed" for item non-response but provides no detail on how Stats SA did so.

摘要
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南非统计局（StatsSA）执行的季度劳动力调查（QLFS）是一项基于家庭的抽样调查。该调查收集了居住在南非、年龄在15岁或以上个人的劳动力市场活动数据。自2008年起，StatsSA基于QLFS数据，每年编制一套名为“南非劳动力市场动态”的年度数据集。该数据集由该年度所有四个QLFS数据集构建而成，并包含了一些在2010年任何QLFS数据集中均不可得的变量（包括收入）。
地理覆盖范围
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全国覆盖
分析单元
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个人
总体
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QLFS样本涵盖了非机构人口，但排除了工人宿舍内的人员。然而，居住在机构内的私人住宅单位内的人员将被统计。例如，在学校校园内，将统计校长住宅和教师住宿，因为这些是私人住宅。然而，居住在学校校园宿舍的学生将被排除。
数据类型
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样本调查数据 [ssd]
抽样程序
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每年，通过结合当年的QLFS波次并包含一些额外变量来创建LMDSA。本LMDSA的QLFS主框架基于Stats SA的2011年人口普查。抽样按省份、地区和地理类型（城市、传统、农场）进行分层。
每年抽取3324个PSU，采用与规模成比例的概率抽样（PPS）。在第二阶段，从PSU中系统地选择住宅单位（DUs）。3324个PSU在该年分为四组，在每一季度，给定组的DUs将被来自同一PSU或名单上下一个PSU（在同一组中）的替代DUs替换。需要注意的是，抽样单位是住宅，观测单位是家庭。因此，如果一个家庭在样本中居住了两个季度后搬离住宅，新搬入的家庭将在接下来的两个季度内进行统计，直到该住宅单位轮换出去。如果没有新的家庭搬入抽样住宅，该住宅将被分类为空置（或未被占用）。
数据收集方式
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面对面 [f2f]
研究工具
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调查问卷包括以下部分：
- 家庭中每个人的详细信息
- 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
- 雇员、雇主和自营职业者的主要工作收入
- 所有15岁及以上人员的迁移情况
响应率
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更多详细信息请参阅伴随数据的统计发布。
数据评估
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统计发布指出，对于项目未响应的缺失值进行了“一般性估算”，但未提供Stats SA如何进行的详细信息。