Each November for the past three years PayPal, an online-payments service owned by eBay, has published data showing the volume of payments it handles on what retailers call "Black Friday", or the first day after the Thanksgiving holiday. The idea is to assess the strength of consumer demand on the day that marks the start of the holiday shopping season. On Black Friday last year the total of payments made on PayPal's system was 20% higher than on the same day in 2008, suggesting that consumer confidence in America was looking more robust. Retailers are hoping for a repeat performance this month.
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