The phrase is used to describe a market that appears overvalued. Is there reason for "rational" exuberance at these levels?
Jim Cramer explained the reason he thinks the move in banks could last.
Jim Cramer compares Trump's election to the moves of Ronald Reagan and Alan Greenspan, and thinks the optimism is here to stay.
Alan Greenspan, former Federal Reserve chairman, provides his thoughts on entitlements and the rise in rates after the election.
Alan Greenspan, former Federal Reserve chairman, talks about the negative impact of regulations, why he is worried about stagflation and growing concern over the high cost of entitlement programs.
Discussinhg a new biography on Alan Greenspan with Sebastian Mallaby, "The Man Who Knew" author.
Fed Chair Janet Yellen has no choice but to endure allegations of political bias, ex-central bank chief Alan Greenspan tells CNBC.
Weak productivity data is likely being misstated, which means U.S. economic growth is likely higher, as well, Jim Paulsen said.
Former Fed Chairman Alan Greenspan struck a somber tone on the economy, after news the U.K. will separate from the EU. Watch the full broadcast interview here.
Former Fed Chairman Alan Greenspan says the Brexit vote brings in a period that's even worse than the October 1987 crash.
Former Federal Reserve Chair Alan Greenspan, discusses the economic problems around the globe.
Former Federal Reserve Chair Alan Greenspan, discusses his concerns on U.S. economic growth, and his entitlement fix.
Former Federal Reserve Chair Alan Greenspan discusses how Americans should think about the Brexit vote economically.
Former Federal Reserve Chair Alan Greenspan discusses the potential fallout politically and economically from the Brexit vote.
Alan Greenspan, Former Federal Reserve Chairman, discusses the economic and market reactions to the Brexit referendum result.
When it comes to communicating with the public, the Federal Reserve may find it just talks too much.
Former Federal Reserve Chairman Alan Greenspan tells CNBC that monetary policy has done all it can without another round of quantitative easing.
CNBC's Sara Eisen speaks with Alan Greenspan, Former of the Federal Reserve Chairman, about negative interest rates as well as oil's impact on markets and the economy.
CNBC's Sara Eisen speaks with Alan Greenspan, Former of the Federal Reserve Chairman, about his views on the U.S. economy and how to help spur growth.
Federal Reserve Chair Janet Yellen appeared on a panel with her three living predecessors. CNBC's Steve Liesman discusses Fed Chair Yellen's comment that the "U.S. is not a bubble economy," and market moves after big Fed talk.