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Hurricane prep--load up on pop tarts and beer

NY Times:

HURRICANE FRANCES was on its way, barreling across the Caribbean, threatening a direct hit on Florida's Atlantic coast. Residents made for higher ground, but far away, in Bentonville, Ark., executives at Wal-Mart Stores decided that the situation offered a great opportunity for one of their newest data-driven weapons, something that the company calls predictive technology.

A week ahead of the storm's landfall, Linda M. Dillman, Wal-Mart's chief information officer, pressed her staff to come up with forecasts based on what had happened when Hurricane Charley struck several weeks earlier. Backed by the trillions of bytes' worth of shopper history that is stored in Wal-Mart's computer network, she felt that the company could "start predicting what's going to happen, instead of waiting for it to happen," as she put it.

The experts mined the data and found that the stores would indeed need certain products - and not just the usual flashlights. "We didn't know in the past that strawberry Pop-Tarts increase in sales, like seven times their normal sales rate, ahead of a hurricane," Ms. Dillman said in a recent interview. "And the pre-hurricane top-selling item was beer."

Thanks to those insights, trucks filled with toaster pastries and six-packs were soon speeding down Interstate 95 toward Wal-Marts in the path of Frances. Most of the products that were stocked for the storm sold quickly, the company said.

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By its own count, Wal-Mart has 460 terabytes of data stored on Teradata mainframes, made by NCR, at its Bentonville headquarters. To put that in perspective, the Internet has less than half as much data, according to experts.

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"When you look at their behavior, you can tell that Wal-Mart considers data to be a top priority," said Christine Overby, a senior analyst for consumer markets at Forrester Research. Over the years, she said, Wal-Mart executives have spent handsomely for their systems, paying $4 billion in 1991 to create Retail Link and signing onto innovations like bar codes and electronic data interchange, a forerunner of the Internet, well ahead of the pack. Wal-Mart is also driving manufacturers to invest in radio frequency identification. By next October, the company will require its biggest suppliers to tag shipments to some of its distribution centers with tiny transmitters that would eventually let Wal-Mart track every item that it sells.