Well, duh. Money spent at local businesses is recirculated in those communities via employee wages, reinvestment into the business (paying contractors and others during remodeling or expansion) and the owner’s own spending. Money spent at an extractive national chain heads straight for Wall St and/or an overseas tax haven, only a fraction of it remains locally to pay employees.

Walmart is even more fun though, they don’t pay their workers enough to survive and often give them just enough hours so that the employees qualify for government subsidies like food stamps, poverty level govt health insurance and/or welfare aid.

But wait, it gets even better: when Walmart moves into a new community they slash prices for a couple of years to draw as much business away from local competitors as possible. Once those companies are driven out of business then Walmart can ratchet up pricing to profitable levels, and because the competition is gone they can charge whatever they like. Prices often end up higher than they were in the first place.