Robert Shiller. Although Alan Greenspan made the phrase famous, he took the phrase originally from Robert Shiller, as stated in Greenspan's biography, "The Age of Turbulence."
Irrational Exuberance - book - was created in 2000.
Extreme happiness and excitement for no apparent reason.
Irrational exuberance
Alan Greenspan
Who coined the phrase, One in a million””
"How do we know when irrational exuberance has unduly escalated asset values?" (Alan Greenspan, chairman of the US Federal Reserve, in a speech during the stock market boom of the 1990s. Translation: How do we know when stocks are too expensive?)
Economies go into a recession after a decline in the Gross Domestic Product growth rate following a period of irrational exuberance. This exuberance can often be felt in housing or high technology areas.
A coined expression is a phrase that is very popular or one that is used often. A coined expression can also be a new phrase or an existing phrase or word that is used in a new sense.
Nam June Paik coined the phrase "Information Highway" in 1974. :)
Bill Engvall is the comedian who coined the phrase, "Here's your sign".
robert hooke coined the phrase tiny boxes and he was looking at a cell
Neologism