Wal-Marts nasty business practices have been well-documented, Crit.
Unless you are a huge fan of Karl Marx, you should be very concerned with the lack of competition that Wal-Mart represents.
I would have to disagree with you Rev. I'm not concerned because the markets tend to balance themselves out in the end. All of you are obsessed with how cheap their products are and how bad they treat their community yet the people in the same community line up every day to purchse Wal-Marts products. Perhaps the problem is that, local businesses have yet to figure out that they should not be trying to "directly" compete with Wal-Mart but instead cater to a niche market. They should offer a higher form of service instead of trying to compete with Wal-Mart for the absolute lowest price. I, along with most people are prepared to pay slightly higher prices for better service. An example would be a McDonalds and a fine dining restaurant. They both offer food, but at the opposite ends of the price and quality spectrum, yet they can both prosper and compete beside each other. That's because they are not directly competing against each other. Another example would be a hair studio where my wife goes to get her hair done and pays $150 whereas I spend $12 on my hair cuts.
Where would we be today if we prevented farming technology on local farms 100 years ago? We would still have 50% of the Canadian population making a living farming and would be between Afghanistan and Ethiopia on the GDP scale of the world.
Some of those nasty practices are the manufactors and supplies that sell to Wal Mart. Wal Mart forces them to sell their goods to them cheaper.
Let's get serious for a moment. Wal-Mart can't "make" suppliers sell their prices lower. They can threaten them with pulling their products off their shelves. That's part of business. If I'm in business and my current supplier is more expensive than his competition, I too would give them a choice. Lower your prices or I'll take my business elsewhere.