Like the dotcom and property bubbles before it, the nascent IPO mania is being inflated by outsize expectations and good old-fashioned greed.

就像之前的网络和房地产泡沫一样，当前的IPO狂热症正在因巨大的预期和由来已久的贪婪而不断膨胀。

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By 2011, as consumer Web IPO-mania grew in advance of the Facebook IPO, Mr. Mason began saying his goal was to make Groupon the Amazon.com Inc.

WSJ: Struggling Groupon Ousts Its Quirky CEO

By 2011, as consumer Web IPO-mania grew in advance of the Facebook IPO, Mr. Mason began saying his goal was to make Groupon the Amazon.com Inc. of local commerce, bringing online the physical retail economy that other Web companies have tried to tap without success.

WSJ: Struggling Groupon Ousts Its Quirky CEO