Labour Force Survey 1st quarter 2015 - 4th quarter 2016, panel

Labour Force Survey 1st quarter 2015 - 4th quarter 2016, panel (8 quarters) 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. 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. Every second quarter AKU is extended with a number of questions to collect data accordant to Eurostats / EUs spesifications. From 1996, the rotation schedule changed, each family now attends eight consecutive quarters. As of 1996 the selection shedule was changed as well with stratification at the county level. Summary of AKU panels with detailed explanations for panel files: Data collection for the new rotation plan as the basis for this file is shown below. Participants in the 4th quarter of 1997 is the first batch of 8 possible completed interviews. Pool |2011|2012|2013|2014|2015|2016|2017|2018| Quarter |1234|1234|1234|1234|1234|1234|1234|1234| --------------------------------------------------------------------------------------------- |____|____|_XXX|XXXX|X___|____|____|____| 2015, 1 |____|____|__XX|XXXX|XX__|____|____|____| 2015, 2 |____|____|___X|XXXX|XXX_|____|____|____| 2015, 3 |____|____|____|XXXX|XXXX|____|____|____| 2015, 4 --------------------------------------------------------------------------------------------- |____|____|____|_XXX|XXXX|X___|____|____| 2016, 1 |____|____|____|__XX|XXXX|XX__|____|____| 2016, 2 |____|____|____|___X|XXXX|XXX_|____|____| 2016, 3 |____|____|____|____|XXXX|XXXX|____|____| 2016, 4 Panel files are created by linking eight interviews from an ordinary interview round of the Labour Force Survey. In the table above means that one could connect all the batches (lines) marked X. Participation 8 times used as a criterion for selection. Annual files and quarterly files consist of respondents who are participating for 1st time, 2nd time, and so on. The weights allow such cross-sections (columns) can be balanced with national figures. If 4 quarters is merged into an annual volume, the quarterly weights be divided by four to attain correct weighted annual numbers. Each panel (panel files: horisontal in the table) will have a weight compiled for each quarter. Although the weights do not differ much from each other, they will be compiled independently, and each weight should be used only for the data which the quarterly weight is made for. Weighted numbers is valid for one pool, which means ca 12,5 % (1/8) of a total quarterly selection. Therefore, one must multiply by 8 to approximate national quarterly figures By "Approximate national quarterly figures" it means that differences from the quarterly national weighted figures can appear, because of the selections and whitdrawal in the connection of the panels. Because of the whitdrawal inflated numbers will be lower than the national total figures. The main point of the weights is not to is not to give national totals, but rather to ensure the best possible representation.

2015年第一季度至2016年第四季度劳动力调查面板数据（共8个季度）
自1972年第一季度起，挪威统计局（SSB）便持续开展官方季度劳动力调查（AKU）。该调查旨在为劳动力管理部门及其他相关从业者提供人口职业结构及其随时间演变的相关信息，为职业预测与劳动研究提供基础数据与统计资料。
1996年，AKU进行了重大修订，涵盖问卷内容、文件说明以及行业与职业编码标准；数据采集方式也同步调整为计算机辅助电话调查（CATI, Computer Assisted Telephone Interviewing）。同时，基于欧盟标准NACE Rev.1的挪威行业分类标准NOS C 182正式启用，该标准分别于2002年与2007年完成更新。自1996年起，采用基于ISCO 88的新版挪威职业分类标准（STYRK）。由于新职业分类体系中未开发对应替代变量，原有的社会经济地位标识变量被移除。
每间隔一个季度，AKU会增设一系列专项问题，以符合欧盟统计局（Eurostats）的规范要求采集补充数据。
1996年起，调查轮换机制与抽样方案均进行了优化调整：受访家庭将连续参与8个季度的调查，同时抽样采用县级分层抽样设计。
以下为适配本文件的新轮换计划数据采集方案说明，以及面板文件的详细解释：1997年第四季度的受访对象为首个完成8次完整访谈的样本批次。
样本池 |2011|2012|2013|2014|2015|2016|2017|2018|
季度 |1234|1234|1234|1234|1234|1234|1234|1234|
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|____|____|_XXX|XXXX|X___|____|____|____| 2015, 1
|____|____|__XX|XXXX|XX__|____|____|____| 2015, 2
|____|____|___X|XXXX|XXX_|____|____|____| 2015, 3
|____|____|____|XXXX|XXXX|____|____|____| 2015, 4
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|____|____|____|_XXX|XXXX|X___|____|____| 2016, 1
|____|____|____|__XX|XXXX|XX__|____|____| 2016, 2
|____|____|____|___X|XXXX|XXX_|____|____| 2016, 3
|____|____|____|____|XXXX|XXXX|____|____| 2016, 4
面板文件通过将单次劳动力调查轮次中的8次访谈数据进行关联拼接生成。上表中标记为X的批次均可进行关联拼接，以连续参与8次调查作为入选面板的筛选标准。
年度文件与季度文件包含首次参与、第二次参与等不同受访次数的受访者。权重设置可使各截面（即表格中的列）数据与全国统计数据保持均衡。若将4个季度的数据合并为年度数据集，需将季度权重除以4，以得到准确的加权年度统计值。每个面板（即表格中的横向行）均需为各季度单独编制权重。尽管各季度权重之间差异较小，但仍需独立编制，且每个权重仅可用于对应季度生成的数据集。
加权统计结果仅对应单个样本池，约占季度总抽样样本的12.5%（1/8）。因此，若要近似推算全国季度总规模，需将加权结果乘以8。此处的"近似推算全国季度总规模"指由于面板抽样与样本流失等问题，加权结果与全国季度官方统计数据可能存在偏差。受样本流失影响，加权统计值会低于全国实际总规模。权重设置的核心目的并非直接生成全国总统计值，而是尽可能确保样本的代表性。