"It's the fear of missing out on a good thing, " he says.

NPR: Exodus From Bonds? Not Yet

Morgan, the fear of missing out on a spectacular merger wave has encouraged managers to keep their hurdle rates as low as possible.

ECONOMIST: Corporate finance

Fear of missing out is exactly why a stealth rally in stocks with low participation would be more meaningful and bullish than almost any other scenario.

FORBES: Price Before Volume, Horse Before Cart

The masses swarm retailers with the fear of missing out.

FORBES: Blacklisting Black Friday

Facebook, the bad, gives you that fear of missing out.

CNN: Facebook inspires status envy

As prices began to fall away in the housing market, fear of missing out on a bonanza was replaced by fear that whatever you paid today, your illiquid real estate purchase would be worth less in six months or a year.

FORBES: Home Prices Poised To Move Higher As Fear of Losses Has Dissipated

The fear then was one of missing out.

FORBES: Home Prices Poised To Move Higher As Fear of Losses Has Dissipated