Growth in German GDP during the last quarter of 2011 and the first quarter of 2012 made up for the weaker economies in the south, and is frequently cited as the reason the Euro Zone did not slip into a recession.

FORBES: Forget Spain And Greece, Signs Of German Weakening Spell Trouble For Europe

Alan Greenspan, chairman of America's Federal Reserve, has frequently cited geopolitical uncertainty as an explanation for the fragile nature of the American recovery.

ECONOMIST: Helping Iraq, and the world, to recover | The

Those three steps are frequently cited by industry representatives as obstacles to expansion.

WSJ: Indian Economy to Grow at Weakest Pace in a Decade

Deflation in the context of bitcoin has been cited frequently in the popular press as a detriment to its widespread adoption.

FORBES: Fear Not Deflation

Frequently, he says, unjust enrichment is cited as a kind of add-on in a case where someone is clearly owed money.

FORBES: Why the Huffpo Class Action Suit Is a Legal Long Shot

The Mississippi cases face an uphill fight, as lawyers and physicians have frequently cited confidentiality and the attorney-client privilege to refuse to turn over documents.

FORBES: Legal Affairs