Taking a page from its original playbook, Wal-Mart Stores Inc. has begun a full-fledged price war with Amazon.com Inc. and a nation of book retailers, lowering online prices on certain highly anticipated hardback titles to $9.
The volley of discounts, which began Thursday when the retailer listed prices for some coming hardcover releases such as Dean Koontz' Breathless and Stephen King's Under the Dome at $10, was answered with a similar price cut by Amazon, the largest online bookseller.
Then the two competitors lowered the prices even further to $9.
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