[scotty79]

They still might extract less than bunch of small business they replace does. Just because they can do many things more optimally. Think of all the fuel, wear and tear and driving time (labor) if everybody in town had to shop in the nearest city, compared to a handful of large trucks supplying Wallmart.

How much money stays when Walmart is there relies on bargaining strength of employees. With weak labor laws it may suck out more. With strong labor laws they could suck out less.

Wallmart being net negative for community as this research seems to indicate is clear evidence that labor laws are too weak.