Jeff Bezos
Amazon CEO Jeff Bezos. David Ryder/Getty

Monday night marked the beginning of Amazon Prime Day, a day-long sales event in which Amazon advertises a steady stream of special offers to members of its Prime subscription service.

The event lasts through Tuesday, and, if history is any indication, is likely to reel in plenty of sales for Amazon.

But the prospect of new sales at such a massive online shopping presence could also have a less-than-ideal side effect: people getting distracted at work.

To put a number on it: Prime Day could result in roughly $10 billion in lost productivity, according to CNBC data journalist Eric Chemi. Chemi suggests that with most of the roughly 85…