Peterson, founder of the Jack in the Box restaurant chain, from 1977 until his death in 1994, but court documents don't disclose the size of the couple's fortune that apparently funded O'Connor's gambling habit.

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In the past few years Lowe's has pushed hard to become the exclusive big-box seller of prestige brands, such as Husqvarna chain saws and Pella windows.

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Half its clients need help essentially to squelch a competitor's project--a supermarket chain, say, wants to keep a big box out of town.

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Anderson said in an interview Thursday that the probe had wounded morale at the electronics chain, which is struggling to adapt its big-box business model to new competitive threats from online retailers such as Amazon.com Inc.

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Yet the chain's selling woes continued against the tough competition of big-box outlets Best Buy, Circuit City and Wal-Mart Stores.

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That Europe hasn't realized the same type of productivity gains is partly a result of its reluctance to embrace the big-box retail model, one that allows a company to take full advantage of the world supply chain to obtain and sell goods cheaply.

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"You can get away with it at a big-box store, with mostly lower skilled retail positions, " he says, noting that a specialty electronics chain like Best Buy generally requires more knowledgeable workers.

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