Facebook\u2019s 2nd-quarter revenue growth was driven by its ability to charge more for ads. PayPal\u2019s 2nd-quarter payment volume grew 40%, but shares sell off due to concerns related to eBay. John Rotonti analyzes those stories, iRobot\u2019s 2nd-quarter results, and which companies have (and don\u2019t have) the ability to raise prices.
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