Consumer Expenditure Survey, 2007: Diary Survey

<p>The CE provides a continuous and comprehensive flow of data on the buying habits of American consumers. These data are used widely in economic research and analysis, and in support of revisions of the Consumer Price Index. To meet the needs of users, the Bureau of Labor Statistics (BLS) produces population estimates for consumer units (CUs) of average expenditures in news releases, reports, quarterly web articles, Monthly Labor Review articles, and annual tabulated CE data. The Diary survey collects data on weekly expenditures of frequently purchased items such as food at home, food away from home, alcoholic beverages, smoking supplies, personal care products and services, and nonprescription drugs, as well as income and characteristics data. The Diary survey PUMD are organized into five major data files for each quarter: 1. FMLD - a file with characteristics, income, and summary level expenditures for the household 2. MEMD - a file with characteristics and income for each member in the household 3. EXPD - a detailed weekly expenditure file categorized by UCC 4. DTBD - a detailed annual income file categorized by UCC 5. DTID - a household imputed income file categorized by UCC2 The population estimates used in the reports and tables mentioned above were derived using CE microdata. CE microdata are at the CU level. To produce the public-use version of CE microdata, the CE undertakes a yearly process that strips the data of any potential respondent identifying information.</p>

消费者支出调查（Consumer Expenditure Survey，CE）持续提供覆盖美国消费者购买习惯的连贯且全面的数据流。此类数据广泛应用于经济研究与分析领域，同时为消费者物价指数（Consumer Price Index，CPI）的修订工作提供重要支撑。为满足用户需求，美国劳工统计局（Bureau of Labor Statistics, BLS）会在新闻稿、各类报告、季度网络文章、《月度劳动评论》刊载的文章以及年度制表的CE数据中，发布针对消费者单位（Consumer Units, CUs）平均支出的人口估算值。
本数据集的日记调查（Diary Survey）会采集高频购买商品的周度支出数据，具体包括在家就餐食品、外出就餐食品、含酒精饮品、烟草用品、个人护理产品与服务及非处方药品，同时收集收入与家庭特征相关数据。日记调查公众使用微数据文件（Public Use Microdata File, PUMD）按季度划分为五大核心数据集：
1. FMLD：包含家庭整体特征、收入及汇总级支出数据的数据集
2. MEMD：包含家庭各成员特征与收入数据的数据集
3. EXPD：按统一消费分类（Uniform Classification of Consumption, UCC）分类的详细周度支出数据集
4. DTBD：按UCC分类的详细年度收入数据集
5. DTID：按UCC2分类的家庭估算收入数据集
前文提及的报告与表格中所用的人口估算值，均源自CE微数据，且CE微数据以消费者单位为统计粒度。为生成CE微数据的公众使用版本，CE项目组每年都会开展数据脱敏流程，移除所有可能识别出受访者身份的信息。