British Household Panel Survey, Waves 1-18, 1991-2009: Special Licence Access, Local Authority District Codes

<P>Abstract copyright UK Data Service and data collection copyright owner.</P>The main <i>British Household Panel Survey</i> (BHPS) is conducted by the <a href="http://www.iser.essex.ac.uk/ulsc/" title="ESRC UK Longitudinal Studies Centre">ESRC UK Longitudinal Studies Centre</a> (ULSC), together with the <a href="http://www.iser.essex.ac.uk/" title="Institute for Social and Economic Research">Institute for Social and Economic Research</a> (ISER) at the University of Essex. In addition to conducting the BHPS and disseminating it to the research community, ISER undertakes a programme of research based on panel data, using the BHPS and other national panels to monitor and measure social change. <br>
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The main objective of the BHPS is to further understanding of social and economic change at the individual and household level in the UK, and to identify, model and forecast such changes and their causes and consequences in relation to a range of socio-economic variables. It is conducted as a longitudinal study, where each adult member (aged 16 years and over) of a sampled household is interviewed annually. If individuals leave their original household, all adult members of their new households are interviewed. Children are also interviewed. For full details of the BHPS methodology, sampling, changes over time, and a complete set of documentation, see the main BHPS study, held at the UK Data Archive under SN 5151. <br>
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<b>Understanding Society:</b><br>
From Wave 19, the BHPS has been subsumed into a new longitudinal study called <i>Understanding Society</i>, or the United Kingdom Household Longitudinal Study (UKHLS), conducted by ISER. The BHPS Wave 19 formed part of Understanding Society Wave 2 (January 2010 - March 2011). The BHPS fieldwork period therefore moved from September-April to January-March. This means that the gap between interviews 18 and 19 for the BHPS sample ranges between 16 and 30 months rather than the standard 12 months. From Wave 2, the BHPS sample has been a permanent part of the larger study and interviews are conducted annually again. BHPS sample members have an identifier within the Understanding Society datasets, allowing BHPS users to match BHPS Wave 1-18 data to <i>Understanding Society</i>. The main Understanding Society study, held under SN 6614 now includes harmonised BHPS data in addition to the main Understanding Society files. Further information is available on the <a href="https://www.understandingsociety.ac.uk/" title ="Understanding Society">Understanding Society</a> web site.<br>
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<br><br>This dataset contains Local Authority District (LADISTC) geographic variables for each wave of the BHPS and a household identification serial number for file matching to the main BHPS data. The LADISTC are aggregated if their population falls below 120,000. This dataset is subject to restrictive access conditions, different to those for the main BHPS: see Information box on the right or Access section below.<br>
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<i>LADs:</i><br>
There are two different releases available for Local Authority Districts (LAD) linked to the British Household Panel Survey.<br>
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* SN 6027 provides the LAD codes as used by official statistics and are therefore linkable. The code is four digit (except for Northern Ireland). Further information - including a full list of codes - may be found in the studies' user guides.<br>
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* SN 6028 gives codes created specifically for the BHPS, where the LADs were aggregated if their population fell below 120,000 in 1991 (for reasons of preventing disclosure). These codes are not linkable to other published statistics. They are still provided to users because until recently they were the only LAD codings available and some users may want to update their analyses using the old codes. Further information - including a full list of codes - may be found in the studies' user guides.<br>
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<i>Latest edition</i>:<br>
For the third edition (July 2010), data for Wave 18 have been added to the dataset.<br>
<br><br><B>Main Topics</B>:<BR><br>Variables include household identification number and LADISTC codes for matching with each wave of the BHPS to date.

本摘要版权归英国数据服务中心（UK Data Service）及数据采集版权所有者所有。

核心的**英国家庭追踪调查（British Household Panel Survey, BHPS）**由<a href="http://www.iser.essex.ac.uk/ulsc/" title="ESRC UK Longitudinal Studies Centre">经济与社会研究委员会英国纵向研究中心（ESRC UK Longitudinal Studies Centre, ULSC）</a>与埃塞克斯大学的<a href="http://www.iser.essex.ac.uk/" title="Institute for Social and Economic Research">社会与经济研究所（Institute for Social and Economic Research, ISER）</a>联合开展。除了开展BHPS调研并向研究社群发布数据外，社会与经济研究所还依托面板数据开展研究项目，利用BHPS及其他国家级面板数据监测、衡量社会变迁。

BHPS的核心目标是深化对英国个体与家庭层面社会经济变迁的理解，并针对一系列社会经济变量，识别、建模并预测此类变迁及其成因与影响。该调研采用纵向研究设计，对抽样家庭中年满16岁的成年成员进行年度访谈。若研究对象离开原家庭，则对其新家庭中的所有成年成员开展访谈；儿童也纳入访谈范围。关于BHPS调研方法、抽样方案、历年变更及完整文档的详细信息，请参阅英国数据档案馆收录的SN 5151号核心BHPS研究。

**理解社会（Understanding Society）**：
自第19波次起，BHPS被纳入一项由社会与经济研究所开展的全新纵向研究——**理解社会（Understanding Society）**，又称**英国家庭纵向研究（United Kingdom Household Longitudinal Study, UKHLS）**。BHPS第19波次构成了《理解社会》第2波次（2010年1月—2011年3月）的组成部分。因此，BHPS的实地调研周期从每年的9月至次年4月调整为1月至3月。这意味着BHPS样本的第18次与第19次访谈间隔介于16至30个月之间，而非标准的12个月。自第2波次起，BHPS样本成为该大型研究的永久组成部分，访谈再次恢复年度开展。BHPS样本成员在《理解社会》数据集内拥有专属标识符，可支持BHPS用户将BHPS第1至18波次的数据与《理解社会》数据集进行匹配。目前以SN 6614号收录的《理解社会》核心研究，除主数据集外，还包含标准化后的BHPS数据。更多信息可参阅<a href="https://www.understandingsociety.ac.uk/" title="Understanding Society">理解社会</a>官方网站。

本数据集包含BHPS各波次的地方政府辖区（Local Authority District, LADISTC）地理变量，以及用于与核心BHPS数据集进行文件匹配的家庭识别序列号。若地方政府辖区的人口规模低于12万，则会对其编码进行聚合处理。本数据集受限于限制性访问条件，与核心BHPS的访问规则不同：请参阅右侧信息框或下文的访问章节。

**地方政府辖区（LADs）**：
针对与英国家庭追踪调查关联的地方政府辖区，目前有两种不同版本的发布数据：

* SN 6027：采用官方统计机构使用的LAD编码，因此具备可链接性。该编码为四位数字（北爱尔兰地区除外）。完整的编码列表及更多信息可参阅研究用户指南。

* SN 6028：专为BHPS编制的编码。为防止数据泄露，1991年人口低于12万的地方政府辖区会被聚合编码。此类编码无法与其他公开统计数据进行匹配。之所以仍向用户提供该编码，是因为在过往一段时间内，它是唯一可用的LAD编码方案，部分用户可能希望使用旧编码更新其分析成果。完整的编码列表及更多信息可参阅研究用户指南。

**最新版本**：
2010年7月发布的第三版新增了第18波次的数据集。

**核心主题**：
数据集包含的变量包括家庭识别号，以及截至当前可用于匹配BHPS各波次数据的LADISTC编码。