Expanding into new countries will play a critical role in whether or not Wal-Mart meets its aggressive growth goals.

Typically, Wal-Mart is not a convenient store to shop, especially if you have want to dash to the store for a handful of products.

Costco really focuses on the upscale shopper, more so than the others.

I think they have the pulse of things they need to do and things they need to fix going forward.

While the world waits for Wal-Mart to collapse under its own weight, Wal-Mart waits for no one, demonstrating a remarkable capacity to manage the retail lifecycle and keep right on rolling.