Recent stock market turmoil sparked by the subprime mortgage crisis isn't keeping shoppers from spending this summer, according to the National Retail Federation.

In a recent survey of 1,000 consumers, roughly half said the situation on Wall Street hadn't changed their spending habits. About 25 percent said they didn't even follow the stock market, while those that did said it had no impact on their behavior. 

Only 13 percent said the crisis had them thinking twice about major and nonessential purchases, the survey found.

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