Wal-Mart — The good, the bad, and the ugly

Wal-Mart is using its martket clout to keep food prices low. This article mentions three methods. I like this one:
Shrink the goods. Ever wonder why that cereal box is only two-thirds full? Foodmakers love big boxes because they serve as billboards on store shelves. Wal-Mart has been working to change that by promising [...]