Understanding Society: Waves 1-10, 2009-2019 and Harmonised BHPS: Waves 1-18, 1991-2009: Special Licence Access, Acorn Type 2015

Understanding Society (the UK Household Longitudinal Study), which began in 2009, is conducted by the Institute for Social and Economic Research (ISER) at the University of Essex, and the survey research organisations Kantar Public and NatCen. It builds on and incorporates, the British Household Panel Survey (BHPS), which began in 1991. <p>This dataset contains contains Acorn geodemographic classification codes for each wave of Understanding Society and harmonised BHPS to date, and a household identification serial number for file matching to the main data. These data have more restrictive access conditions than those available under the standard End User Licence (see 'Access' section). Those users who wish to make an application for these data should contact the HelpDesk for further details.<br><br><strong>Latest Edition Information</strong><br>For the 9th edition (November 2020), Wave 10 data have been added, and the documentation has been updated.<br></p>

理解社会（Understanding Society，全称英国家庭纵向研究UK Household Longitudinal Study）于2009年启动，由埃塞克斯大学社会与经济研究所（Institute for Social and Economic Research，ISER）以及调研机构Kantar Public与NatCen共同执行。该研究继承并整合了1991年启动的英国家庭面板调查（British Household Panel Survey，BHPS）的相关内容。

本数据集包含截至当前，理解社会与经协调统一校准的英国家庭面板调查（harmonised BHPS）各波次的Acorn地理人口分类编码（Acorn geodemographic classification codes），以及可用于与主数据集进行文件匹配的家庭识别序列号。此类数据的访问限制条件严于标准最终用户许可协议（End User Licence）下的可用资料（详见「访问」章节）。有意申请使用此类数据的用户，请联系服务台（HelpDesk）获取详细细则。

**最新版本信息**
第九版（2020年11月）新增了第10波次数据，并更新了相关文档。