After predicting our current global financial crisis, New York University professor of economics Nouriel Roubini earned himself the nickname Dr. Doom. Roubini's words have the power to move markets; when he talks, people listen.
And lately, Roubini seems to have changed his tune somewhat, albeit with many caveats. He anticipates a possible "U-shaped" recovery, with leading economies undeperforming for as many as three years, but also warns of the increased risk of a "double-dip" scenario. "U-shaped," "L-shaped," "double-dip," "V-shaped" -- what do these terms mean?