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Planners have two potential data sources for the geographic distribution of employment.

To preserve the anonymity of establishments, the Bureau of Labor Statistics withholds publication of data for any geographic industry level in which there are fewer than three firms or in which the employment of a single firm accounts for over 80 percent of the industry.

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Planners have two potential data sources for the geographic distribution of employment.

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  1. To preserve the anonymity of establishments, the Bureau of Labor Statistics withholds publication of data for any geographic industry level in which there are • fewer than three firms • or • in which the employment of a single firm accounts for over 80 percent of the industry.

  2. Planners have two potential data sources for the geographic distribution of employment. • commercial business directories (e.g., Boston uses Dun and Bradstreet) • ES-202 data ( most popular choice: Portland (Oregon), Denver, Cleveland, Atlanta) • ES-202 data are unpublished figures on earnings and employment, collected quarterly in each state from each firm paying premiums for unemployment insurance. In Tennessee, the data are collected by the Department of Labor and Workforce Development.

  3. Problems with ES-202 data: • Unpublished and protected by law; special permission and tight controls required. • Many workers excluded: the self-employed without employees, unpaid workers in a family business, railroad employees, about half of those in agriculture, some state and local government employees, and most employees of religious institutions. • Physical address not always complete or correct.

  4. Types of “Products” from Geocoded data: • Constraint: must not disclose information on individual firms. • TAZ and Census Tract employment data (ArcView shapefiles) • Measures of concentration and dispersion of sectors. • Large-scale maps of employment concentration by sector.

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