A newspaper article observes an interesting correlating economic indicator:

The nation’s largest employer and retailer is a bellwether for many things, but theft may be its greatest contribution. Due to the sheer size of its stores – coupled with chronic short-staffing and no security staff – Wal-Mart tends to be ground-zero for shoplifting.

The evidence comes from the discarded packaging found in the deeper reaches of the stores. In normal times, shoplifters will grab CDs, DVDs, and smaller electronics items, strip them of packaging in the quieter aisles, then walk through security scanners undetected.

But over the past few months, workers are discovering that even thieves are having a hard go of it during this wretched economy. “Now I’m finding lots of things like food, diapers, tampons, over-the-counter pharmacy stuff like kid’s cough medicine and insulin,” says one employee.

Metrics are often not found where you expect them.