Labour Force Survey Panel 2nd Quarter 2017 – 1st Quarter 2019

Labour Force Survey 2nd quarter 2017 - 1st quarter 2019, 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 |2012|2013|2014|2015|2016|2017|2018|2019|
Quarte |1234|1234|1234|1234|1234|1234|1234|1234|
---------------------------------------------------------------------------------------------
|____|____|__XX|XXXX|XX__|____|____|____| 2016, 2
|____|____|___X|XXXX|XXX_|____|____|____| 2016, 3
|____|____|____|XXXX|XXXX|____|____|____| 2016, 4
---------------------------------------------------------------------------------------------
|____|____|____|_XXX|XXXX|X___|____|____| 2017, 1
|____|____|____|__XX|XXXX|XX__|____|____| 2017, 2
|____|____|____|___X|XXXX|XXX_|____|____| 2017, 3
|____|____|____|____|XXXX|XXXX|____|____| 2017, 4
---------------------------------------------------------------------------------------------
|____|____|____|____|____|_XXX|XXXX|X___| 2019, 1

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.

Statistics Norway is now utilising a new estimating method for the Labour Force Survey that includes more registers than earlier. The implementation of a new estimating method result in a lower number of employees than the earlier method and accordingly that the number of persons outside the labour force is higher. The total number of unemployed does not change a lot with the new method. In order to obtain more comparable numbers, the entire time series have been revised from 2006 and onwards.

劳动力调查 2017年第二季度-2019年第一季度 面板数据（8个季度）

自1972年第一季度起，挪威统计局（SSB）开始开展官方季度劳动力调查（AKU）。这些调查旨在为劳动力管理部门（及其他相关人士）提供关于人口职业结构及其随时间演变的信息，为职业预测和劳动力研究奠定基础并提供统计资料。

1996年，AKU进行了重大修订，包括问卷、文件说明以及行业和职业编码标准。数据收集方式也改为计算机辅助电话调查（CATI，Computer Assisted Telephone Interviewing）。新的行业分类标准（NOS C 182，基于欧盟标准NACE修订版1）开始启用，并于2002年和2007年更新。此外，基于ISCO 88的挪威新职业标准分类（STYRK）自1996年起开始使用。由于新职业分类中未设置类似变量，指示社会经济地位的变量被删除。

每两个季度，AKU会增加若干问题，以收集符合欧盟统计局（Eurostats）/欧盟规范的数据。自1996年起，轮换计划发生变化，每个家庭需连续参与八个季度。同样从1996年起，抽样计划也进行了调整，增加了县级分层抽样。

AKU面板数据摘要及面板文件详细说明：
以下展示了作为本文件基础的新轮换计划的数据收集情况。1997年第四季度的参与者是首批完成8次访谈的群体。

Pool |2012|2013|2014|2015|2016|2017|2018|2019|
Quarte |1234|1234|1234|1234|1234|1234|1234|1234|
---------------------------------------------------------------------------------------------
|____|____|__XX|XXXX|XX__|____|____|____| 2016, 2
|____|____|___X|XXXX|XXX_|____|____|____| 2016, 3
|____|____|____|XXXX|XXXX|____|____|____| 2016, 4
---------------------------------------------------------------------------------------------
|____|____|____|_XXX|XXXX|X___|____|____| 2017, 1
|____|____|____|__XX|XXXX|XX__|____|____| 2017, 2
|____|____|____|___X|XXXX|XXX_|____|____| 2017, 3
|____|____|____|____|XXXX|XXXX|____|____| 2017, 4
---------------------------------------------------------------------------------------------
|____|____|____|____|____|_XXX|XXXX|X___| 2019, 1

面板文件通过关联劳动力调查常规访谈轮次中的8次访谈创建。表中“XX”标记表示可连接的批次（行）。参与8次访谈是入选的标准。

年度文件和季度文件包含首次、第二次及后续参与的受访者数据。权重可使此类横截面（列）数据与全国数据保持平衡。若将4个季度合并为年度数据，则需将季度权重除以4以获得正确的加权年度数值。

每个面板（面板文件：表中横向数据）均有针对各季度编制的权重。尽管各权重差异不大，但它们是独立编制的，且每个权重仅适用于其对应的季度数据。加权数值适用于一个池（pool），即约占季度总抽样量的12.5%（1/8）。因此，需乘以8以近似全国季度数据。

“近似全国季度数据”是指由于面板数据的抽样和退出情况，可能与季度全国加权数据存在差异。由于退出，膨胀后的数值将低于全国总数。权重的主要目的并非提供全国总数，而是确保尽可能好的代表性。

挪威统计局（Statistics Norway）目前采用了一种新的劳动力调查估算方法，该方法纳入了比以往更多的登记数据。新估算方法的实施导致雇员人数低于旧方法的结果，相应地，劳动力之外的人数有所增加。失业总人数在新方法下变化不大。为获得更具可比性的数据，2006年及以后的整个时间序列已被修订。