Quarterly Labour Force Survey, March - May, 2003 : Local Area Data

The <i>Labour Force Survey</i> (LFS) has been carried out in the UK since 1973. From 1973 until 1983 the survey was carried out biennially, and from 1984 until 1991 it was conducted annually. In 1992 the quarterly LFS was introduced. For full background and methodological information users should refer to the main <i>Quarterly Labour Force Survey</i> (QLFS) series (held at the UK Data Archive (UKDA) under GN 33246).<br>
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The <i>Local Area Data</i> series was produced quarterly alongside the main QLFS from 1992-2006, and included aggregated data on employment, economic activity and related subjects, covering Local Authority Districts (LADs), Training and Enterprise Councils (TECs), and their Scottish and Welsh equivalents. From 1992 until August 1997, the data covered Great Britain, and from September 1997 data from Northern Ireland were added. The <i>Local Area Data</i> were also available as an annual database between 1994-1995 and 1999-2000, for LADs at individual level, but these are no longer produced.<br>
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<b>LFS move from seasonal to calendar quarters</b><br>
In accordance with EU regulations, the LFS moved from seasonal (spring, summer, autumn, winter) quarters to calendar quarters (January-March, April-June, July-September, October-December) in 2006. The last seasonal <i>Local Area Data</i> dataset issued was the <i>Quarterly Labour Force Survey, December 2005 - February, 2006: Local Area Data</i> (SN 5392), and the first calendar quarter dataset was the <i>Quarterly Labour Force Survey, January - March, 2006: Local Area Data</i> (SN 5393). Users should note that there is some overlap between these two datasets. Further information on the seasonal to calendar quarter change and its impact on LFS data may be found in the following online article:<br>
Madouros, V. (2006) <i>Impact of the switch from seasonal to calendar quarters in the Labour Force Survey</i>, London: ONS.<br>
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<b>LFS Documentation</b><br>
The User Guides available with the UK Data Archive's LFS studies are those available at the time of deposit. Users can access the updated guides online via the ONS <a href="http://www.ons.gov.uk/ons/guide-method/method-quality/specific/labour-market/labour-market-statistics/index.html" title="Labour Force Survey User Guide">LFS User Guide</a> pages.<br>
The first deposit of this dataset was made after the regrossing project was completed, so the data are grossed according to the latest population estimates described above.

《劳动力调查（Labour Force Survey, LFS）》自1973年起在英国开展。1973年至1983年间，该调查为两年一度；1984年至1991年改为年度调查。1992年，季度劳动力调查正式推出。如需获取完整背景与方法学信息，用户可参阅主系列《季度劳动力调查（Quarterly Labour Force Survey, QLFS）》（存放在英国数据档案馆（UK Data Archive, UKDA），编号GN 33246）。

《地方区域数据（Local Area Data）》系列于1992年至2006年间与主QLFS同步按季度编制，涵盖就业、经济活动及相关主题的汇总数据，覆盖范围包括地方当局辖区（Local Authority Districts, LADs）、培训与企业委员会（Training and Enterprise Councils, TECs）及其苏格兰、威尔士对应机构。1992年至1997年8月，数据仅覆盖大不列颠地区；1997年9月起新增北爱尔兰数据。《地方区域数据》还曾在1994-1995年至1999-2000年间以年度数据库形式提供，针对单个地方当局辖区，但该年度数据集现已停止发布。

**《LFS从季节季度切换为日历季度》**
根据欧盟相关法规，2006年起LFS从季节季度（春、夏、秋、冬）调整为日历季度（1-3月、4-6月、7-9月、10-12月）。最后一期发布的季节版《地方区域数据》数据集为《2005年12月—2006年2月季度劳动力调查：地方区域数据》（编号SN 5392），首期日历季度数据集为《2006年1—3月季度劳动力调查：地方区域数据》（编号SN 5393）。用户需注意，这两份数据集存在部分重叠内容。关于季节季度转日历季度的调整及其对LFS数据的影响，可参阅以下在线文章：
Madouros, V. (2006) 《劳动力调查从季节季度切换至日历季度的影响》，伦敦：英国国家统计局（Office for National Statistics, ONS）。

**《LFS文档说明》**
英国数据档案馆所藏LFS研究配套的用户指南为存档时的原始版本。用户可通过英国国家统计局（ONS）的<a href="http://www.ons.gov.uk/ons/guide-method/method-quality/specific/labour-market/labour-market-statistics/index.html" title="劳动力调查用户指南">LFS用户指南</a>页面获取更新后的在线指南。
本数据集的首次归档于重新加权项目完成后，因此数据已根据前文所述的最新人口估计值完成加权调整。