Nobel Prize winner Robert Shiller: Greater than average chance of recession in next 18 months

Nobel Prize winning economist Robert Shiller says that the state of the economy, housing and stock markets, combined with continued low interest rates, could mean the U.S. is due for a recession.

However, he says that human behavior makes it very difficult to make predictions. The Trump administration and extreme weather events haven't affected markets...yet.

Watch the video above for more from Robert Shiller.