[tuckermi]

Your observation is spot-on and I agree that it's important not to misread this data set, but I think it still has some valuable uses. While I would rather see more detail, I am interested to see how different industries impact overall employment in the economy even if I can't bucket all the individual jobs under one heading.

With that said, given that a lot of companies contract out for non-core work (e.g. janitorial, kitchen/food-preparation in cafeterias, etc), I wonder how that is handled in this dataset? In particular, what location would be associated with a given contract worker. Would it be their employer's address or the address where they provide services?

[jnordwick]

Employer. These are all done through payroll numbers and some self-reports to fill in the gaps maybe. I'm guessing, similar to the monthly ESR establishment survey.