Sampling: Frame Improvement Project

这个项目的目的是评价劳工统计局的宇宙档案作为国家科学基金会有关研发支出调查的抽样框架的效用，主要是在工业部门。劳工统计局将开发几份报告，分析宇宙文件和职业就业统计主文件中的研发信息。将提供两位数和四位数的标准工业分类资料，并按公司规模和其他变量分层。

The purpose of this project is to evaluate the utility of the Bureau of Labor Statistics' universe file as a sampling frame for National Science Foundation's surveys concerned with R&D expenditures, primarily in the industrial sector. The Bureau of Labor Statistics will develop several reports that analyze R&d information in the universe file and the Occupational Employment Statistics master file. Information will be provided at both the two and four digit Standard Industrial Classification levels, with stratification by size of firm and other variables.