The economic survey collections covered by this system of records produce a wide-range of products for data users, including compilations of administrative records and survey collected data, and numerous research and technical studies. For example, the U.S. Census Bureau's non-employer statistics program provides national and sub-national summary information on more than 20 million businesses without paid employees. The economic programs also combine data for nonemployer and employer businesses in order to provide a complete picture of the Nation's economic activity. One example survey is, the Survey of Business Owners and Self-Employed Persons (SBO), which provides comprehensive information on demographic and economic characteristics of businesses and business owners. Another example survey is the Survey of Construction (SOC), which tracks a sample of builders from county building permit offices, to gauge the amount of residential construction by geographic area. Additionally, the economic programs provide data on the structure, function, finances, taxation, employment, and retirement systems within the United State's federal, state and local governments. A related purpose is to conduct research on the methodology associated with various aspects of surveys, such as data quality checks and review during post data collection processing. An other purposes of the system of records for economic collections include the integration of non-employer and employer records to form a comprehensive business universe file for subsequent analysis.