But after offering depositors high interest rates, Ponzi never really dealt in postal coupons, which turned out to be too unwieldy for large-scale speculation.

但是在承诺存款者高额利息后，庞奇从未真的交易邮政票据，因为那个在大规模投机中太难于操纵了。

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Over the next 12 to 18 months, Gartner predicts we'll see even more compelling applications including mobile location-based digital coupons and points-of-interest search services.

Gartner预测，在接下来的一年到一年半中，我们将会看到更多引人注目的应用程序，包括基于位置的手机数字订单以及名胜搜索。

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Coupon bond a debt obligation with coupons attached that represent semiannual interest payments.

有息票债券附有息票的债务，每半年支付利息一次。

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Groupon faces slowing consumer interest in its online coupons, and has restated its financial results more than once.

WSJ: Struggling Groupon Ousts Its Quirky CEO

Investors gravitated toward longer maturity bonds in an effort to secure higher coupons since older investors often rely on interest payments to sustain their income.

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Moreover, as bond coupons fall, their duration, or their sensitivity to interest rates swings, goes up.

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