Wal-Mart epidemiology

The Wall Street Journal had a good analysis of the possible waning of Wal-Mart earlier this week. But the most fascinating part was the Flash-animated map showing the growth of Wal-Mart outlets in the US over 40 years. You have to think of a spreading epidemic.

Update That link to the map doesn’t seem to work, even though the Journal encourages readers to email it to people. I don’t know whether it’s a temporary outage or something systemic.

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