Labour Force Survey 2019, 2nd quarter, Persons with Disabilities

Labour Force Survey 2019, 2nd quarter, Persons with Disabilities.

Based on yearly ad hoc modules to the Labour force survey on persons with disabilities, SSB achive data on their situation at the labour market compared with the whole population. The statistics also give information on changes over time for this group. This data set contains a supplementary survey to the Labor Force Survey in the second quarter of 2019. Corresponding surveys have been conducted annually since 2002.

As of the 1st quarter of 1972, SSB has conducted official quarterly labour force surveys (AKU). These surveys aim to give the labour force authorities (and other people interested) knowledge of the occupational structure of the population and how it develops over time. The surveys are meant to give a foundation and statistical material for occupational prognoses and labour research. The samples in AKU are from 1992 representative at county level. In the period 1972-1991 they were representative on county pair level.

As from January 2006 some major changes were introduced to AKU in order to enhance its comparability to similar surveys in other countries. The changes consist of minor definitional adjustments of unemployment, some adjustments and enlargement of the questionnaire and a change in age definition (age at reference point instead of at the end of the year). Simultaneously the lower age limit to be included in AKU was lowered from 16 to 15 years. This led to some breaks in the time series in the aforementioned areas.

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Originally, AKU respondents were interviewed in two consecutive quarters of a year, followed by a pause of two quarters, and then another two quarters of interviews. The sample was approximately 10-11.000 respondents in each quarter up until 1988. Originally, AKU was intended to be an analytical supplement to the monthly occupational statistics that was based on the social security membership index file. However, the social security-based statistics disappeared when the sickness benefit was included in the National Insurance as of 1st of January 1971, and AKU has after gradually developed into the most significant source of knowledge of the state of the labour market and its development.

In 1975, Statistics Norway changed the sampling frame of survey research, see article 37: “Om bruk av stikkprøver ved kontoret for intervjuundersøkelser”, SSB (About the Use of Random Samples at the Office for Survey Research, Statistics Norway) by Steinar Tamsfoss, and SØS 33: “Prinsipper og metoder for Statistisk sentralbyrås utvalgsundersøkelse (Principles and Methods for Statistics Norway's sample research) by Ib Thomsen. Simultaneously, the method for estimation of inflation to national numbers was changed, so that reasonable numbers for regions do exist from 1975 and onwards. The change in 1975 led to a different way of interviewing in groups. This caused amongst other things a break with the AKU panel systematics.

In the AKU survey of 1976, a slightly changed questionnaire was introduced. Also, there was a return to the original 6-quarter rotation scheme. The new questionnaire implied a better identification of family workers and persons that are temporarily without paid work. Thus, 30-35 000 more people were defined as employed. The group of "job-seekers without income" were also extended to include persons that were on an involuntary leave of absence. The questions concerning underemployment and “over employment” in the original questionnaire were abandoned.

From the 1st quarter of 1987, the estimation method (inflation to national numbers) was slightly changed. There was also a minor adjustment in the definition of employment. In order to ensure that the numbers were to be comparable to earlier surveys, new versions of the 1980-1986 AKU-files were drawn up. Consequently two versions of the 1980-1987 files - respectively with the old and new methods of estimation - exist. The “old” means that the data are comparable to the original numbers published in the period of 1972 - 1987, whilst the “new” implies that the data are comparable to numbers published after 1987.
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Between the 1st and 2nd quarter of 1988, the AKU file description was changed. The variable “Labour-market status” was given a different coding. In addition, adjustments in the data collections were made - from interviewing a specific week every quarter to carry out continuous weekly interviews. In addition, an escalation scheme to increase the sample size was started. This affected the weights, and from the 2nd quarter of 1988, these were recalculated monthly. To balance out the quarterly or yearly files to total national numbers, the monthly weights therefore had to be divided in three or twelve to give the correct total number.

In 1996, AKU was significantly revised: The questionnaire, the file description and the standard for coding of industry and occupation. The data collection also changed to CATI - Computer Assisted Telephone Interviewing. A new classification of industry was put into use (NOS C 182, based on the EU standard NACE, Rev.1). This standard was updated in 2002 and 2007. Also, the new Norwegian standard classification of occupations (STYRK) based on ISCO 88 was used from 1996 and onwards. The variable indicating socio-economic status was omitted, as a similar variable was not developed in the new occupational classification.

2019年第二季度残疾人劳动力调查。

本数据集基于针对残疾人的劳动力调查年度专项模块，由挪威统计统计局（Statistisk sentralbyrå，简称SSB）采集得到残疾人群体与全体人口在劳动力市场的境况对比数据。该统计数据同时可提供该群体随时间变化的相关信息。本数据集包含2019年第二季度劳动力调查的补充调查内容，自2002年起，此类对应调查每年开展一次。

自1972年第一季度起，挪威统计统计局（SSB）便开展官方季度劳动力调查（AKU）。此类调查旨在为劳动力管理部门及其他相关关注者提供人口职业结构及其随时间演变的相关信息，为职业预测与劳动力研究提供基础与统计素材。自1992年起，AKU的样本实现县级代表性；1972年至1991年期间，样本仅实现双县级（即每两个县为一组）的代表性。

2006年1月起，AKU迎来多项重大调整，以提升其与其他国家同类调查的可比性。调整内容包括：对失业定义进行小幅修正、对调查问卷进行调整与扩充、变更年龄定义（采用基准时点年龄而非年末年龄）；同时，纳入调查的年龄下限从16岁下调至15岁。上述调整使得前述维度的时间序列出现断裂。

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早期AKU的受访对象需在一年内连续两个季度接受采访，随后暂停两个季度，再进行连续两个季度的采访。截至1988年，每季度的样本量约为10000至11000人。最初，AKU的定位是基于社会保障参保索引文件的月度职业统计的分析补充。但1971年1月1日起，疾病津贴被纳入国民保险体系，基于社会保障的统计数据随之消失，AKU也逐渐发展为了解劳动力市场现状及其发展态势的核心信息来源。

1975年，挪威统计统计局修订了调查研究的抽样框架，相关说明可参见Steinar Tamsfoss撰写的挪威统计统计局第37号报告《调查研究办公室随机抽样应用规范》（挪威语原文：*Om bruk av stikkprøver ved kontoret for intervjuundersøkelser*，英文译名：*About the Use of Random Samples at the Office for Survey Research, Statistics Norway*），以及Ib Thomsen撰写的SØS 33号报告《挪威统计统计局抽样调查原则与方法》（挪威语原文：*Prinsipper og metoder for Statistisk sentralbyrås utvalgsundersøkelse*，英文译名：*Principles and Methods for Statistics Norway's Sample Research*）。与此同时，全国数值的通胀估算方法也进行了调整，自1975年起可生成合理的区域统计数据。1975年的调整改变了群体采访的方式，其中一项影响便是打破了AKU的面板系统规则。

1976年的AKU调查启用了小幅修订后的调查问卷，同时恢复了最初的6季度轮换机制。新问卷可更好地识别家庭用工者与临时无薪工作者，因此新增约30000至35000名就业人口。“无收入求职者”群体的范围也得到扩充，纳入了非自愿休假的人员。原问卷中关于就业不足与“过度就业”的问题则被移除。

自1987年第一季度起，全国数值的通胀估算方法进行了小幅调整，就业定义也做了小幅修正。为确保数据可与早期调查结果进行对比，研究人员编制了1980年至1986年AKU数据集的修订版本。因此，1980年至1987年的数据集存在两个版本：分别采用旧估算方法与新估算方法。“旧版本”数据可与1972年至1987年发布的原始数据进行对比，而“新版本”数据则可与1987年之后发布的数据进行对比。
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1988年第一季度至第二季度期间，AKU数据集的字段说明进行了更新，“劳动力市场身份”变量的编码规则发生变化。此外，数据采集方式也进行了调整：从每季度针对特定一周进行采访改为持续每周开展采访。同时，研究机构启动了样本量扩容计划。上述调整影响了权重计算，自1988年第二季度起，权重改为每月重新计算。为使季度或年度数据集的总量与全国总数值匹配，月度权重需分别除以3或12，以得到正确的总数值。

1996年，AKU迎来重大修订，涉及调查问卷、数据集字段说明以及行业与职业编码标准。数据采集方式也改为计算机辅助电话采访（CATI, Computer Assisted Telephone Interviewing）。新的行业分类标准（NOS C 182，基于欧盟NACE Rev.1标准）正式启用，该标准分别于2002年与2007年进行了更新。自1996年起，挪威开始采用基于ISCO 88标准的新版职业分类标准（STYRK）。由于新版职业分类体系未开发对应的社会经济地位变量，原数据集中代表社会经济地位的变量被移除。