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If you're in San Francisco, perhaps you waved your smartphone over a payment terminal; if in London, maybe you momentarily tapped your funky-looking wristband on it; if in Nairobi, you probably just sent a text message. And if you're in Lund in Sweden, maybe you simply swiped your palm.
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Whether it's via contactless cards and mobile phones, or even wearable gadgets and biometrics, new ways of paying and spending are increasingly muscling their way into the mix, leading to a rise in cashless transactions.
http://edition.cnn.com/2014/08/21/tech/how-well-pay-for-things-in-the-future/index.html
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