What Wal Mart is doing is partially responsible for the declining economy in the US. Whenever a Wal Mart is created, the economy declines in the community they reside. Through lower pay to employees leading to less available funds for other stores. Because of their low prices, they drive local businesses (small businesses) out of business causing a net job loss.
http://pubadvocate.nyc.gov/news/2011-01-...-taxpayers
http://pubadvocate.nyc.gov/news/2011-01-...-taxpayers