What it is:
Our QCEW set is designed to match (as closely as possible) published figures from the BLS’s Quarterly Census of Employment and Wages. As you may guess, our primary source for this CoW is the official QCEW. Areas where Emsi will differ include:
- Emsi fills in suppressed figures with estimates using other data sources (County & ZIP Business Patterns) and a mathematical process of adjusting to known state and industry totals.
- We also reclassify all public sector employment into distinct NAICS codes (including public schools and healthcare) as opposed to the BLS’s use of “ownership codes.” We do this to maintain consistency between industry and occupation figures in Analyst.
- Instances where classifications have changed over time. For example, when the NAICS 2012 system went live the BLS and other sources who use those codes did not retroactively apply the new system to old data. Emsi utilizes published crosswalks and regional analysis to use the current systems in all years for more accuracy when looking at job change over time.
When to use it:
QCEW is great at capturing wage & salaried jobs. It’s estimated that about 96% of employee jobs in the country are captured in this set. But some are left out, including the military, most railroad workers, some non-profit organizations, some religious institution employees, and a handful of others. The primary use of the QCEW CoW on its own is to match published figures from the BLS.